The first-generation Cadillac CT6 made its formal introduction for the 2016 model year, eventually sunsetting in North America following the conclusion of the 2020 model year. Although the CT6 is no longer sold stateside, the sedan lives on overseas, specifically in China. In fact, GM has already launched the second-generation CT6 in China for the 2024 model year. Now, we’re taking a closer look at both generations, measuring the two in the following GM Authority Dimensional Comparison.
2024 Cadillac CT6
2020 Cadillac CT6
Comparing the exterior dimensions of the first-generation Cadillac CT6 against the second-generation CT6 reveals some interesting insights. Both generations share an identical wheelbase of 122.4 inches (3,109 mm). However, the overall length sees a slight reduction for the second-gen, with the first-gen CT6 measuring 205.8 inches (5,227 mm) and the second-gen just a bit shorter at 205.6 inches (5,223 mm).
Width-wise, the second-generation CT6 is slightly broader at 74.4 inches (1,890 mm) compared to the first-generation’s 74 inches (1,880 mm). The height of the vehicle shows a minor variation as well, with the first-gen standing at 58 inches (1,473 mm), while the second-gen varies between 58 to 58.3 inches (1,473 to 1,480 mm).
The track widths for the vehicles also show some differences. The front track of the second-gen CT6 ranges from 63.7 to 64.2 inches (1,618 to 1,631 mm), slightly wider than the first-gen’s 63.4 inches (1,610 mm). The rear track has increased from 64 inches (1,626 mm) in the first-gen to a range of 64.3 to 65 inches (1,634 to 1,652 mm) in the second-gen.
2024 Cadillac CT6
2020 Cadillac CT6-V
Trunk volume has seen a significant increase, with the first-generation offering 15.8 cubic feet (446 liters) and the second-generation expanding to 17.9 cubic feet (508 liters). As for the curb weight, the second-gen is slightly heavier, ranging from 3,847 to 3,880 pounds (1,745 to 1,760 kg), compared to the first-gen’s range of 3,708 to 3,820 pounds (1,682 to 1,733 kg).
To note, the curb weight figures only include RWD models, as the Chinese-spec CT6 is RWD only. Additionally, the height, track, and weight for the second-gen CT6 vary depending on the wheels selected, with the base trim equipped with 18-inch wheels, and the rest of the lineup rolling on 19-inch wheels.
Check out the table below for a full breakdown:
| First-Gen CT6 | Second-Gen CT6 | |
|---|---|---|
| Wheelbase (in. / mm) | 122.4 / 3,109 | 122.4 / 3,109 |
| Length (in. / mm) | 205.8 / 5,227 | 205.6 / 5,223 |
| Width (in. / mm) | 74 / 1,880 | 74.4 / 1,890 |
| Height (in. / mm) | 58 / 1,473 | 58 to 58.3 / 1,473 to 1,480 |
| Front Track (in. / mm) | 63.4 / 1,610 | 63.7 to 64.2 / 1,618 to 1,631 |
| Rear Track (in. / mm) | 64 / 1,626 | 64.3 to 65 / 1,634 to 1,652 |
| Trunk Volume (cu. ft. / L) | 15.8 / 446 | 17.9 / 508 |
| Curb Weight (lbs. / kg) | 3,708 to 3,820 / 1,682 to 1,733 | 3,847 to 3,880 / 1,745 to 1,760 |
Despite the updates and enhancements, there’s pretty much no chance the second-generation Cadillac CT6 will be sold in North America, as GM Authority covered previously. And that’s unfortunate, given that GM Authority readers have responded overwhelmingly in favor of such a model arriving stateside in GM Authority polls. Indeed, GM Authority has even made the business case for the new CT6 to be sold in America, but alas, it appears as though such things are simply not in the cards.
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Comments
I’m not a CT6 buyer ( have a CT4 BW), but I had one as a loaner once and it was a terrific diving car. If all the past leaks and rumors are even half true, the Omega platform that underpins the CT6 was supposed to underpin the current CT5 (not sure about CT4, probably still alfa II). Now that the EV transition is slowing, I would really love to see Cadillac pull that plan out of mothballs, reliance CT6, CT5 and CT4, all using Omega. Maybe even hybrid only. keep them in the market 10 years with a refresh and then consider going Ev then the technology should be more mature. doing so would also RWD or AWD, the true blackwing motor and magaride on AWD models. would keep the sedans (and a coupe!) fully compeitive till EVs are lighter and faster charging. My suggestions are probably too expensive, but the general has to spend all the pickup money somewhere!
Mark Reuss said the EV strategy was Cadillac’s “last chance”.
I suppose anything could change but when he made that announcement several years ago, it sounded like if the electric Cadillacs don’t bring about significant volume improvements, it’s curtains for the brand. I don’t know what that assertion now portends for Cadillac but it doesn’t seem like the Lyriq or any GM Ultium EVs have been a rip-roaring success so far and with slowing EV adoption generally and GM dramatically scaling back EV sales projections, the once-hoped-for Caddy EV volumes may now be tough to achieve. Therefore if Reuss’ words are accurate, they’re not going to bring back the Omega and build any of the once-planned CT6 derivatives. It would seem a return to internal combustion engines is out of the question and the future is EVs….or nothing.
That was back in 2019 when he said that. 5 years ago. If GM has to shutter Cadillac its because they chose to neglect it in markets outside China. NOT because it was out of their control. If they put just as much effort into their lower end ICEs as they do in the new Escalade and EVs, Cadillac would have been one of the hottest premium brands with so much growth potential to re-establish itself.
I just got done reading an article on the new Nautilus on Ford Authority. And it has enjoyed a 41% jump in sales in the first half of 2024 because of its refreshed design and new tech features. Setting aside the Made in China part (which honestly, most Americans have no idea or don’t care), the Natilus is attractive, sleek, and an excellent value compared to the German brands which is a major selling point for it and its proving to be a sales success for Lincoln. Cadillac has a striking all new XT5 in China that could have helped freshen up some sales numbers but they choose not to bring it in favor of “EV only future” which is now in question. So I don’t buy the crap that this is Cadillacs “last chance.” If it needs to be shuttered, its because Mark Reuss allowed it to die.
If GM can’t run Cadillac , or Buick for that matter, they should sell those divisions to people who can, and care .
How can you take a,legendary brand, and systematically marginalize it , into oblivion!
I assure everyone, if Cadillac is gone , it will be a crime !
America will have no premium luxury car !
Call that a superpower?
Yes but I don’t want it sold to the Chinese. England has done that to two of their iconic brands and they are b@$t@rdizing the brands identity and gutting their British manufacturing to keep them on the mainland. They were only interested in the badges to do hide their own products behind them basically. Selling these two brands to them would be the ultimate betrayal to the American workers.
He also put a Corvette into a concrete wall on TV!
I was so disappointed when I went to a Cadillac dealer asking to trade my impala for a ct6 only to find out the ct6 is nomore … bring back huge saloons to USA
Well that’s a slap in the face for all AMERICANS! Sold only in China,,,since when do they care about nicer things! They can’t come up with anything nice on their own, they have Volvo, but they had to buy it. Go ahead and bring them to AMERICA, some of us won’t buy one, we don’t want anything that China has had first. We are SUPERIOR!
Why are all of the new designs taking place in China? I read your bulletins regularly and it seems a lot of GM news is directed about new designs for China?
because china is commercialy more importantt than USA
Boy are things going to pleasant for GM should geopolitics take a turn for the worst with China. I guess good thing we have the Japanese and Koreans left to provide Americans with cars because putting all your eggs in a basket that may nationalize those eggs or ban those eggs from selling in their basket will not play out well when you don’t have other markets to soften the blow, because you ditched them to go all in on China. Any investor with a brain will tell you the smartest thing you should do is diversify your assets and not abandon all for one (especially one that is unhinged and volatile). But hey hopefully Xi can bail them out when those chickens come home to roost.
Because Americans chose to buy trucks and SUVs over large sedans. Why do you guys ask this question every time this question gets asked? The ct6 wasn’t moving units over here. Blame the consumer.
Actually CT6 was selling decently for its segment which is not a high volume niche but it sold well enough to be number five in the category moving around 10,000 units per year (9,169 in ‘17; 10,542 in ‘18; 9,669 in ‘19; 3,117 in ‘20; 103 in ‘21) until it ended production in January of 2020.
The problem was that GM kept the cheap-to-build and similarly sized XTS in production alongside the CT6. It was the fourth best seller in the large luxury sedan segment. They really only needed one product in that category and together CT6 and XTS volume would’ve likely made for the top seller in their field had the older FWD car been eliminated and that model’s volume absorbed by CT6.
The other problem for CT6 was that GM wanted the Hamtramck plant where it was built to be their main EV plant and historically 10,000 units per year was nothing for GM and not enough to relocate the model to a new plant and keep it in production. The reason I say historically is that today the Lyriq only sold 9,154 units in 2023 but there are no dire warnings of its demise like all the on-again/off-again drama that preceded Cadillac’s eventual confirmation that CT6 would die due to “poor sales”.
The corporate shenanigans at GM are absolutely sick .
They could of kept the CT6 here !
These people could of never built GM , but they sure know how to destroy it.
Yes it was ! They played games with the facts , as usual …..GM wanted to make more profit per vehicle, and decided to pull passenger cars, push everyone into a dam Crossover joke vehicle, or truck they do not need!
I know old accountants, and insurance men , never in the dirt in their lives , hauling their dilapidated self’s in them ..well not everyone is a follower.
All Cadillac, Buick, Lincoln people I know ( alot of them ) are driving foreign sedans now.
Didn’t you all hear? GM changed their name to GTM – General Tso Motors.
at least is still not General Tata Motors,,,see the RIP Jaguar
I could make the argument that the CT6-V Blackwing (the true Blackwing) is the best full size Cadillac that Cadillac every built. I have owned everything from high end German, Japanese, and European, sport sedans, and I am here to tell you that the CT6-V doesn’t take a back seat to anyone. It’s a fantastic driving car and yes it ticks me off that the second gen CT6 is only available in China. I don’t blame Cadillac though. You have to fish where the fish are. Cheers!!
for sure the caddys of 1930ies 1940ies 1950ies 1960ies 1970ies 1980ies were the best cadillacs ever had, the recent 20 years caddilac are the worst, exterior design saying
Bring back the CT6 to America where it belongs,
Steve raabe…its because China is a bigger market, more new sold there than here.
Make it in the USA! Make all of the GM Chinese and South Korean made cars in the USA again! Don’t know why all of the imported car brands are made in the USA and GM can’t!
UAW
Has nothing to do with UAW.
Incompetent management.
Of all the many Cadillacs I have owned, my $80000. CT6 was the BEST one ever! China sure is lucky. I now have a 2025 CT5!!!
Using the Lyriq is a terrible false equivalency. The Lyriq is a new model with new technology and has been growing in sales each year. The CT6 sold 3k units in 2020 in the US while it sold 22k in China that same year… Again American consumers don’t buy large sedans. Don’t get mad at Cadillac, get mad @ your fellow countrymen for their terrible taste in vehicles.
Yes but it doesn’t change the fact that GM still prioritizes China and the US is an afterthought. The refreshed XT5 is a perfect example of that. I would love to know what is their logic behind not offering the XT5 refresh in the US? (The EV one is a stupid one at best). I highly doubt its so costly to retool Spring Hill to accommodate a refreshed model.
Part of me hopes Lincolns new Nautilus is a sales success so GM can get a nice slap in the face for not bringing the refreshed XT5 stateside. But GM is soo blinded by yellow fever that they won’t even notice anyways.
The US public us filled with followers.
I agree, and the seeing all these Crossovers are aburd to me .
They are common, ugly, boring, and do nothing well !
However, the CT6 was marketed poorly .
So many people didn’t even know it existed!
Why did Cadillac keep the smaller sedans, and not the big one ?
Then add Covid .. .
I know people who wanted one , walked out on Cadillac, when it wasn’t available!
That’s the way to do it Cadillac. Another stupid move on your part. I currently have 4 Cadillacs in my garage DTS premium (creampuff) , CTS sport and a 20 CT6. After reading this and not allowed to purchase a new CT6. I’m thinking of selling off all of them and getting a Mercedes and an Audi. Cadillac can go rot
I am Cadillac all my life, and since a tiny boy !
The corporate culture, and poor imagery around today’s Cadillac Motor Car Division, tarnished the brand for me , my own cars included .
They should bring that CT 6 to North America, or just forget it .
Its a true Cadillac!
Import it , if they must .
Everything else comes from China!
The company hurts the loyalist, but doesn’t gain any converts !
How can these people destroy one if the greatest legends in automotive history?
There should still be a option for people who would like to purchase a ct6 and live in the us.i know there built in china.maybe ship over to us.?I’m sure they would find a lot of people interested in buying a luxury sedan now.not everyone wants a crossover and many that did are wanting to go back to a sedan.
I would say something, but Dominick and Cadillac Man have said what I also feel.
How did they get 2 more cu ft of trunk space? No spare?
Malaise era II trudges on in true form. Why this car can’t be sold here in the states is just ludicrous and why we live is dark times. So many choices have been stripped away. Each year we lose more cool cars and get more boring Cuv’s making it increasingly difficult to be an automotive enthusiast.
GM lost its mojo a long time ago!
There’s no room for American automotive enthusiasts anymore!
I have a 2014 Impala (that I still love) with about 160,000 miles on it. Nothing wrong with it, but my kid turns 16 this year and it will likely go to him. I’d absolutely be in the market for a new CT6 if they had them here.
Talking about shooting yourself in the foot! Cadillac has a bad rep for shutting down great vehicles & potentially great concepts because lack of commitment period! The Xts & the Ct6 were both needed in my opinion but Cadillac got stage freight or just lacked the insight to see the future for those two nameplates! The CT6 Black Wing another awesome & fist waving provocateur was just the dose of adrenaline that the luxury market needed from America to compete directly with the Germans but once again Cadillac folded! An American car co that caters to everyone else other than it’s own is almost treasonous! Wake up Cadillac it still isn’t too late!