The current Infiniti M45 is 193.3″ long, 70.9″ wide, on a 113.8″ wheelbase, weighing 3,968 lb. At 16.1 feet it fits a standard garage and fits a street parking space.
Every Infiniti M45 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 |
|---|---|---|---|---|---|
| 2003–2004 | 197.2″ | 70.1″ | 57.5″ | 110.2″ | 3,882 lb |
| 2006–2010 | 193.3″ | 70.9″ | 57.9″ | 113.8″ | 3,968 lb |
M45 year by year
Measured every model year, not just at generation changes — 7 years on record. Small moves inside a generation are facelifts; the jumps are new platforms.
| Model year | Length | Width | Wheelbase | Curb weight | Body styles |
|---|---|---|---|---|---|
| 2010 | 193.3″ | 70.9″ | 113.8″ | 2 | |
| 2009 | 193.3″ | 70.9″ | 113.8″ | 2 | |
| 2008 | 193.3″ | 70.9″ | 113.8″ | 2 | |
| 2007 | 193.3″ | 70.9″ | 113.8″ | 1 | |
| 2006 | 193.3″ | 70.9″ | 113.8″ | 1 | |
| 2004 | 197.2″ | 70.1″ | 110.2″ | 1 | |
| 2003 | 197.2″ | 70.1″ | 110.2″ | 1 |
Will a M45 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 | 16.1 ft | Fits, with room to open the door |
| Street parking space | 18 ft | 16.1 ft | Fits comfortably |
| Standard parking bay width | 8.5 ft wide | 5.9 ft | Room to open doors both sides |
Against cars of the same length
Compared with 924 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 | 70.9″ | 73.6″ | -2.7″ |
| Wheelbase | 113.8″ | 111.8″ | +2.0″ |
| Curb weight | 3,968 lb | 3,977 lb | -9 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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- No ads, no tracking — and much more
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 Infiniti M45?
193.3″ (16′ 1″) in its current generation, 70.9″ wide and 57.9″ tall.
How much does a Infiniti M45 weigh?
3,968 lb at the kerb, which is 2% more than the first generation we hold from 2003.
Will a M45 fit in a garage?
At 16.1 feet it fits a standard 20-foot single garage with room to spare. A street parking space of 18 feet is comfortable.
Has the M45 got bigger over the years?
Not materially, by the generations we hold.