The current BMW 645Ci is 189.8″ long, 73.2″ wide, on a 109.1″ wheelbase, weighing 3,990 lb. At 15.8 feet it fits a standard garage and fits a street parking space.
Every BMW 645Ci 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 |
|---|---|---|---|---|---|
| 2004–2005 | 189.8″ | 73.2″ | 53.9″ | 109.1″ | 3,990 lb |
Will a 645Ci 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 | 15.8 ft | Fits, with room to open the door |
| Street parking space | 18 ft | 15.8 ft | Fits comfortably |
| Standard parking bay width | 8.5 ft wide | 6.1 ft | Room to open doors both sides |
Against cars of the same length
Compared with 981 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 | 73.2″ | 72.8″ | +0.4″ |
| Wheelbase | 109.1″ | 110.2″ | -1.1″ |
| Curb weight | 3,990 lb | 3,849 lb | 141 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 BMW 645Ci?
189.8″ (15′ 10″) in its current generation, 73.2″ wide and 53.9″ tall.
How much does a BMW 645Ci weigh?
3,990 lb at the kerb.
Will a 645Ci fit in a garage?
At 15.8 feet it fits a standard 20-foot single garage with room to spare. A street parking space of 18 feet is comfortable.
Has the 645Ci got bigger over the years?
Not materially, by the generations we hold.