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Second-Gen Cadillac CT6 vs. First-Gen Cadillac CT6 Dimensions Compared

For North America, the Cadillac CT6 is a thing of the past, considering that the final unit rolled off the assembly line at the Detroit-Hamtramck plant in February 2020. However, the luxury sedan lives on in the form of the all-new second-gen model, which is offered exclusively in China. The new model features a completely revamped exterior, but we became curious how its size compares to that of the first-gen. Below, Cadillac Society is taking a closer look at how the first two CT6 generations stack up in terms of size. 

2019 Cadillac CT6-V

2024 Cadillac CT6

Before getting into the nitty gritty, it’s important to note that the height, track, and weight of the second-gen CT6 vary depending on the wheels with which it’s equipped. The base trim level features standard 18-inch wheels while the rest of the lineup gets 19-inch wheels.

Both the first-gen Cadillac CT6 and the second-gen CT6 have exactly the same wheelbase, measuring 122.4 inches. The length is also identical at 205.8 inches, although the second-gen CT6 is slightly wider at 74.4 inches versus 74 inches even. The second-gen CT6 is also a bit taller at 58 to 58.3 inches high (depending on wheels), compared to the 58-inch-tall first-gen model.

2019 Cadillac CT6

Unsurprisingly, considering that it’s wider overall, the front track of the second-gen CT6 is wider as well – 63.7 to 64.2 inches, compared to the first-gen model’s 63.4-inch front track. The same goes for rear track, which is also wider at 64.3 to 65 inches as opposed to the first-gen model’s 64-inch rear track.

The two CT6 generations differ in terms of trunk volume. The first-gen Cadillac CT6 offers 15.8 cubic feet of space. That’s quite a bit less than the next-gen model, which boasts 17.9 cubic feet of cargo volume.

2020 Cadillac CT6

2024 Cadillac CT6

Finally, the second-gen Cadillac CT6 is heavier than the discontinued first-gen model. For context, we’re comparing the rear-wheel-drive variants; the first-gen CT6 was offered with an optional all-wheel-drive powertrain, while the Chinese-spec second-gen Cadillac CT6 is only offered with RWD. So, the first-gen CT6 tips the scales at 3,708 to 3,820 pounds, while the second-gen CT6 weighs in at 3,847 to 3,880 pounds, depending on wheel option.

Second-Gen Cadillac CT6 vs First-Gen Cadillac CT6 Dimensional Comparison
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

Alas, the second-generation Cadillac CT6 is exclusive to the Chinese market, and at the time of this writing, we are not aware of any plans to bring the model stateside.

Also, be sure to subscribe to Cadillac Society for more Cadillac CT6 news and around-the-clock Cadillac news coverage. We also invite you to join the latest discussions in our Cadillac forums and Cadillac CT6 forum.

First-Generation Cadillac CT6 Photos

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Second-Gen Cadillac CT6 Photos

[ngg src=”galleries” ids=”41″ display=”basic_thumbnail” thumbnail_crop=”0″]
Alexandra Purcell

Alexandra is a Colorado-based journalist with a passion for all things involving horsepower, be it automotive or equestrian.

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