Last month, GM’s cross-town rival debuted the refreshed 2022 Ford Expedition. One of the biggest news for the updated Chevy Tahoe and Suburban as well as the GMC Yukon and Yukon XL rival was the announcement of the Stealth Performance Package, which adds quite a bit of power to the Expedition… power that the GM SUVs simply do not have. But they should. We’ll explore this very topic in today’s GM Authority Opinion Desk.
2022 Ford Expedition Stealth Performance Package
The 2022 Expedition Stealth Performance Package is powered by the high-output version of Ford’s 3.5L EcoBoost V6, which is rated at 440 horsepower and 510 pound-feet of torque. That is 20 more horsepower and 50 more pound-feet of torque more than the 6.2L V8 L87 – the most powerful engine in the Tahoe, Suburban and Yukon lines.
GM has just the solution in its parts bin to combat Ford’s assault. That solution is none other than the supercharged 6.2L V8 LT4 engine, which makes 668 horsepower and 659 pound-feet of torque in its newest form in the Cadillac CT5-V Blackwing. Dropping this beast in the Chevy and GMC full-size SUVs would easily give The General the performance lead over Ford. The only question now is whether The General will actually do so.
A prototype of the Cadillac Escalade-V testing in May 2021
As GM Authority reported over the past few years, The General is planning to introduce an LT4-powered version of the fifth-generation Cadillac Escalade. Likely to be named Cadillac Escalade-V, prototypes of this truck were spotted undergoing testing earlier this year with menacing sounds emanating from their exhaust pipes. However, here’s where things get a bit disheartening.
Sources tell us that the Escalade-V is the only full-size GM SUV slated for LT4 power, at least as of this writing. In other words, The General currently isn’t planning on giving the Tahoe, Suburban, or Yukon/Yukon XL the supercharged V8. However, the 2022 Expedition Stealth Performance Package could potentially change that. After all, GM clawed its way to sales leadership status in the full-size SUV space by delivering a better product, instead of playing second fiddle to the Blue Oval.
This Chevy Tahoe prototype was faster than our spy’s Camaro LT 1LE
A small glimmer of hope that The General could be considering an LT4-powered Tahoe came earlier this year, when GM Authority spies caught what appears to be a Chevy Tahoe SS undergoing testing back in June. The prototype was equipped with a variety of components from the Police Pursuit Vehicle package to most likely take advantage of that model’s heavy-duty cooling system while sporting a Z71 front fascia. Most notably, this Tahoe prototype was so quick that it even outran our spy, who was driving the Chevy Camaro LT 1LE. Oh, and this Tahoe was loud. Very loud.
So as it currently stands, The General is not planning on offering a Tahoe SS or Suburban SS, but it should. Such models would make for a very appropriate swan song for the ICE-powered SUVs before the automaker shifts to an all-electric vehicle lineup over the next decade or two.
Since we mentioned GM’s sales leadership in the full-size mainstream SUV space, we might as well tell you the complete story. The Chevy Tahoe and Suburban outright dominate the mainstream full-size SUV space in terms of raw sales volume.
Case in point: during the first nine months of 2021, the Tahoe accounted for 33 percent share of its segment, while the Suburban took 13 percent. Treated as a single vehicle, the dynamic duo commanded a combined 46 percent of the segment, up two percentage points compared to the first nine months in 2020.
The GMC Yukon, which includes the regular-length Yukon and extended-length Yukon XL, accounted for 24 percent of the segment. By comparison, the Expedition – which includes the regular-length Expedition (a Tahoe/Yukon competitor) as well as the extended-length Expedition XL (a Suburban/Yukon XL competitor) – took 23 percent of the segment, a decrease of four percentage points. All other rivals (from Nissan, Toyota and Jeep) took the remaining seven percent).
Sales Numbers - Mainstream Full-Size SUVs - Q3 2021 - United States
| MODEL | Q3 21 / Q3 20 | Q3 21 | Q3 20 | Q3 21 SHARE | Q3 20 SHARE | YTD 21 / YTD 20 | YTD 21 | YTD 20 |
|---|---|---|---|---|---|---|---|---|
| CHEVROLET TAHOE | +4.68% | 24,202 | 23,121 | 36% | 35% | +26.21% | 75,148 | 59,540 |
| CHEVROLET SUBURBAN | +28.07% | 9,667 | 7,548 | 14% | 11% | +42.08% | 34,183 | 24,059 |
| GMC YUKON | +7.31% | 10,733 | 10,002 | 16% | 15% | +48.55% | 36,975 | 24,891 |
| FORD EXPEDITION | -13.95% | 16,696 | 19,402 | 25% | 29% | +24.07% | 64,204 | 51,747 |
| NISSAN ARMADA | -13.19% | 3,790 | 4,366 | 6% | 7% | +6.64% | 18,684 | 17,520 |
| TOYOTA SEQUOIA | -16.99% | 1,773 | 2,136 | 3% | 3% | +29.11% | 6,111 | 4,733 |
| JEEP WAGONEER | * | 42 | * | 0% | 0% | * | 42 | 0 |
| TOTAL | +0.49% | 66,903 | 66,575 | +28.96% | 235,347 | 182,490 |
The takeaway here is that GM SUVs control an astounding 70 percent of the mainstream full-size SUV segment, with Ford being the only competition, and barely that with a 23 percent share. So yes, it is high time for GM to supercharge its SUVs, especially given that the Camaro won’t need that LT4 much longer.
Comments
I’ve said it before, WAKE UP GM! Look at Chrysler, the only thing they got going is their not afraid to put power in their vehicles. Taking a lot of market share from Ford and GM. Too bad their transmissions explode and electronics are funky. GM has good vehicles but without the power they are second best maybe even third now.
They’re also doing well with luxury designs like the Jeep Grand Cherokee L Limited Reserve and the Wagoneer.
Won’t happen why would they do that now when they are focused on ev crap
I’d go the economy route instead, put the 1.5 lite in the Suv’s. They’ll sell droves of them.
They have a 2.7 Turbo I-4 they could do this with. It’s already in the Silverado/Sierra
Dropping such an engine into a vehicle not initially made for it is no small feat ! These SUVs are basically people movers ant GM has the huge task of keeping them safe people movers. And dependable. You don’t become a Porsche Cayenne maker from scratch ! Even if you are GM !
I would like to see the super charged LT-4
in the new Tahoe, That would be great for towing.
As much as I like the idea of a supercharged full-size body on frame SUV, fuel economy is going to be heinous at best.
Maybe GM should offer the performance intake and exhaust as standard for the 5.3L and 6.2L V8’s to improve horsepower and torque, supercharged 6.2L should be Escalade only.
You’ll certainly need a hybridization on this one. This will greatly impact city mileage.
And this is why they may put it in the caddy and nothing else. CAFE. When you control 70% of the market, I am not sure gm “needs” to do more power especially since. 1) you can buy it aftermarket and 2) if it is aftermarket gm does not get dinged on CAFE. And 3, by giving it only to the slade, it makes the slade more exclusive for the extra bucks they cost.
True but lots of buyers want it ready to go right away.
Negative, the LT4 is super efficient and what nobody realizes, is it has a boost bypass valve, and when open, the valve allows the LT4 to opperate exactly like the NA 6.2. The problem is that in the corvette, people like to push in the throttle. All that is needed is an “eco” mode, or a ECU normal mode that keeps the bypass open 90% of the time and economy won’t change a bit.
Easily fixed, just tune ecu to 580tq and 500HP so you don’t overwhelm the rest of the systems.
An extra 15 large for 80 horse Even the big spenders here May have an issue with that
Actually, it’d be a walk in the park. PEOPLE ALREADY DO It. The engine is the same size with an intake manifold that’s replaced by a blower, so it’s maybe a little taller. A bit more fuel here, a larger cooling system there, standard the brembo caliper option…. Easy peasy.
People have been swapping the supercharged LS and LT motors into these trucks for years because they are in fact, essentially the same engines. Also, I got a good laugh at your comment about dependability, then said something about the cayenne like they weren’t horrific nightmares to try to keep running. That’s a funny one there.
I think gm is encrypting the code in PCMs as they roll out new models.
I am sure tuner companies are working hard or may have broken the code but I am sure it will cost more than a benjamin or two for access to it.
I’m sorry, this is a no-brainer. What’s more, I cry every time I read about the end of ICE powered SUVs and trucks. I just don’t think it’s going to work. I’d like to be proven wrong and maybe we won’t have a choice but I’m still not and won’t be a fan.
It’s all about selling what people want. Fiat-Chrysler have been dumping Hellcat engines in everything and they can’t keep them in the showrooms. Enjoy them while you can, because the sound of nothing will becoming soon, when the EV’s take over.
$$$,$$$.$$
Anytime you increase 100+ hp/tq you have brakes and drive line you must change to handle twist factor and punishment with stopping requirements.
Supercharged Jeeps are each above 100k to start and Porsche starts their turbos above Jeep…
I would like to see a turbo on the v8 for increased torque, jmo
Driveline can handle the power. It can’t handle speed. 2-piece driveshafts don’t like spinning fast, but they’re fine pulling almost 14,000 lbs towing. And, GM has a brake upgrade package anyway on the shelf. Iirc, it’s a $2500 option that requires upgrading to 20s or bigger. The brake upgrade package comes via Brembo.
You can order the 6.2 with a Callaway SC and intact GM warranty with 602hp from the factory and shipped through Callaway. Faster than the TRX with 100 less hp. I delivered one this year and it is a beast.
Callaway currently does not offer a package for the current gen full size SUVs due to a software issue with the transmission. Could GM sell the hell out of a supercharged 6.2 in these units? Of course. Demand would certainly be there. Do they need to rush it? Considering every unit produced out of the plant is sold before it hits the lot, I would say no. Also, without Bolt sales for the next little while they are missing out on some badly needed emission credits that would help make this option feasible. I can’t see GM going to Tesla at this point looking for credits. Perhaps the talk of a dealer installed option is a way around that issue. But I’m certain a supercharged option is coming, but GM has no pressure to make it happen immediately.
The supercharger kit exists for the Silverado 6.2 with 10 speed. I’m sure if Callaway sees enough interest in the Tahoe/Suburban/Yukon, they can make it happen, assuming their C8 project does not take up all their available resources. I don’t expect to see GM offer it from their factories, especially with the transition to EV.
You touched on something that’s actually fairly important but neglected. The gm 6.2L and 5.3L have a major robustness improvement vs say, a dodge 392. The 392 you can’t easily and reliably supercharge, that’s partly why the Hellcat is so much more money and so desirable with all its forged goodness. But it needs all that stuff to be forged to survive, you can’t just slap a blower on and not worry. The GM v8s have decades of being able to handle moderate levels of boost without any internal upgrades.
So for dodge, the Hellcat makes sense because it’s a comprehensive overhaul and upgrade of the motor. In a GM, the motor itself is a harder sell, you can go to several companies and buy a bolt on supercharger that will be reliable for way less than the likely price difference to a SS or V model. Granted, aftermarket blowers are not for everyone, and I’m sure GM would do suspension and brake upgrades as well as some interior tweaks, but I think it would make sense to do some trickle down, and offer it in 2 versions, an SS, and an SS Supercharged. The SS model could be a 6.2 with suspension, brakes, and modest intake and exhaust improvements (which could be gmpp parts), bump it to 500hp or so, and then a full tilt SS Supercharged model with the LT4. The RST would continue with regular brakes and suspension, but sportier appearance, but only be 3.0 or 5.3 powered.
With the price of suvs and they are selling, worrying about mpg with a supercharger seems trivial. Reminds me of the old saying about the guy asking the salesman what the mpg of a new Caddy was. He replied, ‘ if you have to ask, you can’t afford one’.
Exactly! Putting MPG and SC in the same sentence is an oxy-moronic statement…
I don’t see it happening, LT4 in the SUV’s would be too expensive as a package, and would not be worth the cost of development especially when we are just a few years from all new powertrains.
Escalade I see happening, but not the other SUV’s as Chevy customers do not want to pay $20K more for the Tahoe, which already sells in the mid $80K range.
This 👆
Lol. Americans. GM can’t even get their lifter issues rectified, yet y’all talking about more power? How about getting reliability down pat first then we can start talking forced induction.
Wait a minute you!!! That makes sense so it’s not allowed on here.
The broken valve spring issue was fixed back in March. Try keeping up.
GM says it’s fixed but look at the forums. It’s obviously not fixed; try keeping up. Crappy domestic quality.
Whatever kike
Supercharge all gmc Chevy lineup tf is going on
American v8’s Lol…good thing we are not discussing diesels and EPA – right… Everyone has a closet door.
Right because Zeropeans are the pinnacle of reliable vehicles…
I’m fine with them selling it as a V badge on the Escalade. What I’m not fine with is their failure to supply it as an upgrade via the GM Performance catalog for the trucks and SUVs. They already reflash the ECU for the performance CAI via the dealership. An LT4 supercharger upgrade kit with reflash and full GM Performance factory warranty would be ideal for 2019+ trucks and SUVs, and would end up under the hood of my Trail Boss LT with the 6.2.
Would love a factory blower kit, but fat chance of it being supported from the factory. GM got quality issues out the wazooo!
GM needs to stop faking and put that 8.1 back out there I probably don’t remember that in the avalanche the four-wheel steering suburban
Quadra-steer and an 8.1
I’ve gone back in time almost 20 years!
Long ago gm needed cash and scrapped out all the casting molds.
I think it makes sense to offer it as a Tahoe and suburban SS model, and an escalade-Vs. Sales won’t be huge, but the program is practically done already with parts bin stuff, so it will be profitable.
As long as it still tows like a regular one but with more power, a isn’t tuned to ride too stiff, it’ll be great. If people will pay 150k for a range rover or Mercedes with gobs of power and 3 rows, they’ll pay 100k for a gm with the same deal that won’t cost them massive amounts of money to keep running.
Offer an electric one that goes fast versus Offer a supercharged V8…..
Let me take us back to history here when GM last offered a Supercharged V8 on a 4 door vehicle…..it Didn’t Sell. They only reason GM should put the LT4 in the SUVs is if they have a marketing plan this go around. No one outside of extreme car enthusiasts knew about the SS. Because Chevy didn’t do those awesome commercials Dodge consistently does! They need to do a proper reveal, HUGE one. Otherwise, it’ll just be a waste of metal if it doesn’t sell
There’s so much wrong with this, where to start…
Firstly, they’re building the hummer EV and likely other variants based off that.
Second, the SS sedan wasn’t supercharged, and didn’t sell because it had 0 marketing, because it’s sole purpose was to burn off excess capacity in the last Australian plant before they shut it down.
GM has been quite successful with supercharged CTS-Vs, 3 generations at this point if you count the new blackwing.
That said, GM marketing does suck vs dodge. GM. Does those stupid “real customer” ads where the best thing hey have to say about the vehicles is they might not be a gm product. If your sales pitch is that a dumb person will think it’s a more expensive car than it is that’s a pretty bad commercial. Meanwhile, dodge has family SUVs doing burnouts and drifting and looking like the fun we all still want to have. Honestly gm should just hire the dodge marketing team.
That’s not GM’s image, or the ethos of Chevrolet, like it or not. Dodge HAS to do burnout commercials because that Dinosaur of a brand can’t get Americans to buy their vehicles.
Dodge marketing call: “Hey, we can’t sell any cars so let’s do a commercial with burnouts and we’ll sell them to all the meatheads and Mopar gearheads in their late 50’s. It’s our last ditch effort.”
What? What is GM or Chevy’s image then? Almost a nice car? Honestly the only Chevy ads I ever even see are for silverado, where they talk about that stupid tailgate. They should run them about their baby duramax, it’d be a much more compelling differentiation.
Dodge definitely does have more of a performance image than Chevy, and so it makes sense that they’d absolutely trash Chevy in those kinds of vehicles, which they do. So maybe that’s the smart move? Don’t see too many 20 somethings with all the debt in the world and a Starbucks addiction lining up to buy either set of cars.
Meanwhile I’m in my 30s and would absolutely consider a dodge product. A Hellcat Durango is kinda ideal for me, though I still wish it had the double sized moonroof. Honestly, the only Chevy product I think that’s competitive in egment is tahoe/yukon. We test rove traverse, it had a few really bad cost cuts that drag it down vs competitors (the moonroof being an unforgivable one). Durango is sort of a weird in between in that segment, and not ideal for my wife (but had they out the ecodiesel in it, I’d definitely get her an ecodiesel GT/RT trim one).
I don’t really know what your argument has to do with putting a blower on the 6.2, but it’s a great idea because more choice is better for consumers.
Chevy’s image is not Dodge, whether you like it or not it is irrelevant. I never said they shouldn’t offer an upgraded engine option. It was you that said Dodge has better marketing than Chevy. Chevy sells more cars than Dodge. And when you sell more product than your competitor you don’t need a clown show for advertising. The Silverado is their best selling and most profitable vehicle. That’s why they advertise it and the stupid tailgate as you say.
I disagree. Chevy may sell more units but that’s because they’ve got stuff like the bolt and Trax and equnnox and other cheap stuff to round it out. Dodge sells more challengers than gm does Camaros. Dodge doesn’t really have anything else that matches up with a Chevy competitor, as Durango is an in between of traverse and Tahoe. Ram doesn’t have the huge fleet sales silverado does.
I get your point, but I don’t agree. Advertising to your market excites your customers. Selling more units by virtue of being there with a car to sell isn’t a long term success plan. Making product that your buyers want and are excited about, even if non customers think it’s childish, stupid, whatever… That works. And there’s no shortage of guys who like performance cars and stuff like that to keep buying these products.
Your ignorance is fantastic. I don’t know what your background is but mine is business. “Chevy may sell more units…but Dodge sells more Challengers”? Makes absolutely no sense. Dodge has 3 vehicles. Chevy has a dozen. Chevy sells more cars and has more market share than Dodge. It ends at that statement.
Companies spend advertising dollars when they need to move product or propel the brand they term good will. It’s only about return on investment. Not whether you think it’s cool. If they are selling product and meeting their goals then the advertising, whatever you think of it, is working. Those people don’t know what they’re doing but you in your infinite marketing wisdom do? Sorry to be so curt.
Business finance and engineering.
Just because GM sells more products overall doesn’t make them “better”. Dodge could have a perfectly fine existence selling just performance oriented vehicles. Hell, the most valuable brands in the world do just that, they build one type of thing and stick to it.
I don’t think Dodge needs to be Chevy. By your logic, chevy sucks because it doesn’t build as many vehicles as vw or Toyota globally.
I think it makes a lot of sense for dodge to build cars that are more sporty and muscular in their segments. No, they won’t sell the to guy who just wants the cheapest car. But, they’ll sell to the person who wants a sporty vehicle and they’re more likely to sell it at a higher margin, and margin drives profit.
Marketing isn’t the sole driver of sales. As you pointed out, dodge sells Durango, charger, and challenger. The only one with a direct competitor at Chevy outsells the Chevy. Despite being older.
At the end of the day, dodge and Chevy dont necessarily compete for the same buyers. Someone buying a Durango to tow their boat or rv isn’t necessarily going to shop traverse and the and the other 10 Chevy products that aren’t relevant. You could maybe argue a base v6 charger buyer would cross shop impala or whatever they make like that now, but dodge has a lineup that’s overall, fairly niche and unique. They keep selling well in the models they do have, so it seems like a good strategy.
Remember how over bloated GM was in 08 because it had several brands that all had the same segments covered and sort of all competed internally? There’s no need to replicate that.
You’re completely lost now. I never implied or inferred “my logic” that Chevy sucks because they sell less cars than other companies. The whole point of this conversation was you said Chevy should hire Dodge to do their advertising because you like their burnout commercials. Get it?
As you stated Dodge and Chevy don’t necessarily compete for the same buyers. If true, why should Chevy hire Dodge to do their advertising?
“Private Santiago was leaving the base for the rest of his life, why wasn’t his foot locker packed Colonel Jessup?”
Dodge does whatever they can because, guess what, they only have three cars. They have to do those commercials to sell their cars. Chevy on the other hand does not have to do what Dodge does. Does that resonate Colonel Jessup?
The SS was only used to burn through leftover inventory since they were shutting down Holden… they never intended it to sale as good as those ancient clunkers from Dodge.. hence why it didn’t get marketed… if they would have pushed it, they would have had to build more than they were capable of..
The ancient clunkers who continue to outsell the camaro? Or the ancient clunkers who will still be here when the camaro is canceled in 2 years?
Did someone finally confirm that the Camaro was going to be canceled or nah?
Always more power? The question arises who has a need for this? At GM, I can imagine that the LT4 SC will only be installed in Cadillac V-Series models. Currently being planned for the Escalade. The competition is great here and I see the BMW Alpina XB7 with 616 HP as a direct competitor. Since Cadillac does not want high numbers of V-Series vehicles, only a few will produce LT4 SC. One option for the Chevrolet and GMC trucks is to have Callaway power engines installed directly. I remember the Corvette C4 BiTurbo from Callaway which was then sold by Chevrolet.
And now my suggestion, which can also be planned at GM: GM delivers the Chevrolet and GMC trucks to Callaway. Callaway installs the already existing legal SC kit in the trucks and delivers the trucks to the dealers. Or GM installs the Callaway Kit directly in the factory, as is the case with BMW with Alpina vehicles.
Remember that BMW and Alpina have been paracting this “GM Callaway Production System” for many years now and that the Alpina components are installed directly in the BMW plant. The BMW Alpina XB7 is built by BMW USA Spartanburg and certified and sold by BMW USA!
Every manufacturer can react quickly and small quantities always pay off.
The Chevrolet and GMC EV trucks will be produced in 2024 and until then the 6.2L V8 LT4 SC are the perfect runout variants.
I’m sure GM will produce Ice versions alongside electrics, because GM has never had any real success with electric vehicles, let alone electric family vehicles. If they go fully EV, they’re pretty much doomed.
The value prop for a vehicle like a suburban or Tahoe is you can pile in your kids, your dogs, your stuff, and maybe some relatives, throw a bunch of stuff on the roof, and pull boat boat or rv or whatever to a vacation spot. Even without a trailer it’s still a huge value prop. Having to stop every 250 miles for 30+ Minutes loaded up like that is a layer of hell I’m pretty sure. Whereas with an Ice vehicle, you run out of range at 350 miles (being very conservative here with a 20+ gallon tank, especially since there are now diesel versions doing nearly 30mpg), pull off the highway, hit up a gas station, pump for 3 to 5 minutes, and if you’re smart you deal with dogs/kids/bathrooms/good during this time, and you’re back on the road before someone in an EV has even found a charging station, let alone actually finished their charge. You don’t have to do dumb partial charges to be quick, you get a full tank, every time, faster than the quick charge.
EVs work fine around town, but people buy tahoes and suburban for long trips once or twice a year. Almost nobody buys a suburban because they need it day to day, they buy it for the infrequent trips so they don’t have to spend 300 bucks a day to rent one. That’s $4500 bucks every 2 weeks of use, so if you do that kind of trip once for vacation and once for the holidays, that’s 9 grand per year you saved by going with the oversized for your daily needs option, which will last longer and have better resale than most crossovers too.
What people always miss is the fine print… when GM said “we’re going all electric by 2035”, there was an asterisk… everybody focuses on the main statement but never saw the asterisk that said the statement didn’t apply to the fullsize truck and SUV line… GM isn’t doing away with gas/diesel engines for a very long time… much like every other manufacturer…
I’ll bet the Green New Deal just loves this idea!
Lol never gonna happen
I have 2021 Platinum Expedition and it will walk all over a 6.2 Tahoe and that’s before I can 5 Star tune it for +50hp and +100tq. Gotta love twin turbos when it comes time to tune a motor.
I’m also waiting in line to order a “constrained” 2022 High Country Tahoe for my wife, so this isn’t a Chevy hater comment. The 6.2 was a great motor many years ago but it is long in the tooth now.
It reminds me of the old 3.8l v6. It was around for ages and was reliable. But it stayed the same while everyone else was making more powerful v6 engines left and right.
GM eventually got rid of it. But gave us the 3.5 and the same engine bored out to 3.9 and they were both turds.
They had the 3.6 back then but it was limited to Cadillac and Holden. Now, GM has used that engine in every brand.
Lol…twin turbos vs a NA motor comparison is funny. When your wife gets her Tahoe, put a tune and headers on the 6.2 and now there’s a race. If you want to compare turbo with turbo, they sell kits for the 6.2 or a procharger and the Expedition so far back you might recognize it in the rearview…
My point, turbo and NA are not compariable and the 6.2 still has many years left.
Edellbrock makes a Dual Overhead 4 valved LS Head much better than GM That makes 750hp all natural on a stock LS Engine. You can buy today .
WTF have you been smoking?
Or, use the Cadillac TT 3.6 that was used in “V-Sport” models. More options are better.
The next generation 1500’s will have independent rear axel’s like the new Suburban’s to combat the Ram’s.
In case people have been sleeping, there are 1,000 horsepower Suburbans and Tahoes from Chevy. They have been sold the last couple years by GM stealerships, and sent out for modifications from aftermarket company SVE. Expect to pay over $100,000 though.