The all-new fifth-generation Chevy Tahoe introduces a long list of updates and changes for the SUV nameplate, but critically, enthusiasts looking for extra speed with their SUV are left out in the cold. Now, it looks like that might change, as GM Authority just caught what could be a new Chevy Tahoe SS prototype undergoing a little real-world testing.
Recently spotted on the streets of Metro Detroit, this Chevy Tahoe is equipped with a variety of components from the Police Pursuit Vehicle package, including telltale PPV wheels and a Z71 front fascia. We also spot running boards and a huge single-exit exhaust behind the passenger-side rear tire, while manufacturer plates, layers of camo, and a red GM prototype sticker on the driver’s side window prove that we have a genuine GM prototype on our hands.
So then, what leads us to believe this may be a pre-production Chevy Tahoe SS? Well, for starters, it was quick – very quick, even outrunning our Chevy Camaro LT 1LE spy vehicle, which means we could only grab a single image of it.
What’s more, this Tahoe was loud, even abnormally so. It’s possible that the prototype was not properly configured with the odd single-outlet exhaust, or perhaps it was running a dual-mode exhaust system in the loud setting. Even so, the high decibel levels this thing throwing out go beyond a dual-mode exhaust setup.
So then, if this is indeed a Chevy Tahoe SS prototype, we would expect to find the supercharged 6.2L V8 LT4 under the hood, the same powerplant found in the C7 Corvette Z06, third-gen Cadillac CTS-V, Chevy Camaro ZL1, and now, the Cadillac CT5-V Blackwing. Previously, it was believed that a new Chevy Tahoe SS model could be created using a proposed supercharger kit for GM’s latest full-size SUVs, but now, the LT4 seems like the more likely candidate.
With the LT4, output could range around the 650-horsepower mark, similar to the upcoming high-performance Cadillac Escalade-V.
So what’s up with the PPV gear? One possibility is that GM dropped an LT4 under the hood of a PPV prototype in order to take advantage of the latter’s extra-heavy-duty cooling system, which includes a higher capacity radiator and engine oil cooler.
If a Chevy Tahoe SS does make it to production, we would also expect upgrades like more aggressive styling, better brakes, bigger standard wheels, stickier tires, and shaper suspension in the form of a special tune for the Magnetic Ride system.