Quick answer
The 2026 Cadillac CT4 is 187.4″ long, 71.7″ wide and 55.9″ tall on a 109.4″ wheelbase, and weighs 3,631 lb. At 15.6 ft it fits a standard garage and leaves 2.4 ft spare in an 18-foot street space.
Every Cadillac CT4 generation, measured
| Generation | Length | Width | Height | Wheelbase | Curb weight |
|---|---|---|---|---|---|
| 2020–2026 | 187.4″ | 71.7″ | 55.9″ | 109.4″ | 3,574 lb |
ROWS 1·SOURCE NHTSA vPIC / Transport Canada
CT4 year by year
| Model year | Length | Width | Wheelbase | Curb weight | Body styles |
|---|---|---|---|---|---|
| 2026 | 187.4″ | 71.7″ | 109.4″ | 5 | |
| 2025 | 187.4″ | 71.7″ | 109.4″ | 5 | |
| 2024 | 187.4″ | 71.7″ | 109.4″ | 5 | |
| 2023 | 187.4″ | 71.7″ | 109.4″ | 5 | |
| 2022 | 187.4″ | 71.7″ | 109.4″ | 5 | |
| 2021 | 187.4″ | 71.7″ | 109.4″ | 4 | |
| 2020 | 187.4″ | 71.7″ | 109.4″ | 4 |
ROWS 7·SOURCE Transport Canada vehicle specifications
Will a CT4 fit
| Space | Typical size | This car | Verdict |
|---|---|---|---|
| Single garage | 20 ft deep | 15.6 ft | Fits, with room to open the door |
| Street parking space | 18 ft | 15.6 ft | Fits comfortably |
| Standard parking bay width | 8.5 ft wide | 6 ft | Room to open doors both sides |
ROWS 3·SOURCE ForCar, computed from vehicle dimensions
Against cars of the same length
| Measure | This car | Typical of 1,105 cars within 10″ of its length | Difference |
|---|---|---|---|
| Width | 71.7″ | 72.8″ | −1.1″ |
| Wheelbase | 109.4″ | 109.1″ | +0.3″ |
| Curb weight | 3,631 lb | 3,761 lb | −130 lb |
ROWS 3·SOURCE ForCar, computed across vehicles of similar length
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Frequently asked questions
Is the 2026 CT4 bigger than the 2025?
No. The 2026 and 2025 CT4 are the same size and weight.
Dimensions from NHTSA vPIC and Transport Canada vehicle records, manufacturer-declared for 7 CT4 model years, 2020 to 2026. Metric values converted to inches and pounds; generation boundaries are estimated from changes in size (how we measure). Last updated Nov 2026. — ForCar Reviewed by Denis Kataev, founder of ForCar.
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