The current Cadillac CT6 is 203.9″ long, 74″ wide, on a 122″ wheelbase, weighing 4,165 lb. At 17 feet it fits a standard garage and fits a street parking space.
Every Cadillac CT6 generation, measured
One row per generation. Watch the weight column — that is where most of the change happens, and it is the number that decides fuel use, tyre wear and how far the car takes to stop.
| Generation | Length | Width | Height | Wheelbase | Curb weight |
|---|---|---|---|---|---|
| 2016–2020 | 203.9″ | 74″ | 57.9″ | 122″ | 4,165 lb |
CT6 year by year
Measured every model year, not just at generation changes — 5 years on record. Small moves inside a generation are facelifts; the jumps are new platforms.
| Model year | Length | Width | Wheelbase | Curb weight | Body styles |
|---|---|---|---|---|---|
| 2020 | 205.9″ | 74″ | 122.4″ | 4 | |
| 2019 | 205.9″ | 74″ | 122.4″ | 4 | |
| 2018 | 203.9″ | 74″ | 122″ | 5 | |
| 2017 | 203.9″ | 74″ | 122″ | 5 | |
| 2016 | 203.9″ | 74″ | 122″ | 5 |
Will a CT6 fit
The practical question behind every dimensions search. A single-car garage in the US is typically 20 feet deep; a street parking space is about 18. We allow a foot of clearance in both — nobody parks to the millimetre.
| Space | Typical size | This car | Verdict |
|---|---|---|---|
| Single garage | 20 ft deep | 17 ft | Fits, with room to open the door |
| Street parking space | 18 ft | 17 ft | Fits comfortably |
| Standard parking bay width | 8.5 ft wide | 6.2 ft | Room to open doors both sides |
Against cars of the same length
Compared with 553 vehicles within ten inches of the same length — a fair proxy for «cars of this size», regardless of what the marketing calls them.
| Measure | This car | Typical car of this length | Difference |
|---|---|---|---|
| Width | 74″ | 75.2″ | -1.2″ |
| Wheelbase | 122″ | 117.7″ | +4.3″ |
| Curb weight | 4,165 lb | 4,345 lb | -180 lb |
A longer wheelbase for the same overall length means shorter overhangs — usually more cabin space and a steadier ride. Lighter than typical for its size generally means better fuel economy and shorter stopping distances.
Specs vary by trim. Yours decodes from the VIN.
- Exact build, engine and factory options for one VIN
- The original window sticker as it left the factory
- What that specific configuration is worth today
- Decode a whole list of VINs at once
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How we measure
Dimensions come from NHTSA vPIC and Transport Canada vehicle records — manufacturer-declared figures, held in metric and converted to inches and pounds for display.
One row per generation, not per model year: manufacturers rarely change the body between facelifts, and a table of forty near-identical rows helps nobody. Where a generation offered several body styles, the figures are the base measurements for that generation.
Related tools
Frequently asked questions
How long is a Cadillac CT6?
203.9″ (16′ 12″) in its current generation, 74″ wide and 57.9″ tall.
How much does a Cadillac CT6 weigh?
4,165 lb at the kerb.
Will a CT6 fit in a garage?
At 17 feet it fits a standard 20-foot single garage with room to spare. A street parking space of 18 feet is comfortable.
Has the CT6 got bigger over the years?
Not materially, by the generations we hold.