The current Infiniti Q45 is 199.2″ long, 71.7″ wide, on a 111.4″ wheelbase, weighing 3,882 lb. At 16.6 feet it fits a standard garage and fits a street parking space.
Every Infiniti Q45 generation, measured
One row per generation. Watch the weight column — that is where most of the change happens for the Infiniti Q45, 0 lb of it since 1990, 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 |
|---|---|---|---|---|---|
| 1990–1996 | 200″ | 72″ | 56.3″ | 113.4″ | — |
| 1997–2006 | 199.2″ | 71.7″ | 57.1″ | 111.4″ | 3,882 lb |
Q45 year by year
Measured every model year, not just at generation changes — 17 years on record for the Infiniti Q45. Small moves inside a generation are facelifts; the jumps are the 2 new platforms below.
| Model year | Length | Width | Wheelbase | Curb weight | Body styles |
|---|---|---|---|---|---|
| 2006 | 201.6″ | 72.4″ | 113″ | 1 | |
| 2005 | 201.6″ | 72.4″ | 113″ | 1 | |
| 2004 | 199.6″ | 72.4″ | 113″ | 1 | |
| 2003 | 199.6″ | 72.4″ | 113″ | 1 | |
| 2002 | 199.6″ | 72.4″ | 113″ | 1 | |
| 2001 | 199.6″ | 71.7″ | 111.4″ | 1 | |
| 2000 | 199.2″ | 71.7″ | 111.4″ | 1 | |
| 1999 | 199.2″ | 71.7″ | 111.4″ | 1 | |
| 1998 | 199.2″ | 71.7″ | 111.4″ | 1 | |
| 1997 | 199.2″ | 71.7″ | 111.4″ | 1 | |
| 1996 | 200″ | 72″ | 113.4″ | 1 | |
| 1995 | 200″ | 72″ | 113.4″ | 1 | |
| 1994 | 200″ | 72″ | 113.4″ | 1 | |
| 1993 | 200″ | 72″ | 113.4″ | 1 | |
| 1992 | 200″ | 72″ | 113.4″ | 1 | |
| 1991 | 200″ | 72″ | 113.4″ | 1 | |
| 1990 | 200″ | 72″ | 113.4″ | 1 |
Will a Q45 fit
The practical question behind every dimensions search, and for a 16.6-foot Infiniti Q45 it has a straight answer. A single-car garage in the US is typically 20 feet deep and a street parking space about 18, so the Q45 clears the garage by 2.4 ft. We allow a foot of clearance in both — nobody parks to the millimetre.
| Space | Typical size | This car | Verdict |
|---|---|---|---|
| Single garage | 20 ft deep | 16.6 ft | Fits, with room to open the door |
| Street parking space | 18 ft | 16.6 ft | Fits comfortably |
| Standard parking bay width | 8.5 ft wide | 6 ft | Room to open doors both sides |
Against cars of the same length
Compared with 743 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 | 71.7″ | 74″ | -2.3″ |
| Wheelbase | 111.4″ | 114.6″ | -3.2″ |
| Curb weight | 3,882 lb | 4,171 lb | -289 lb |
A longer wheelbase for the same overall length means shorter overhangs — usually more cabin space and a steadier ride. At 3,882 lb the Infiniti Q45 is 289 lb lighter than typical for its size, which generally shows up as fuel economy and stopping distance.
Specs vary by trim. Yours decodes from the VIN.
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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, 17 measured model years for the Infiniti Q45 between 1990 and 2006.
One row per generation, not per model year: manufacturers rarely change the body between facelifts, and the Infiniti Q45 fits into 2 rows instead of 17. Where a generation offered several body styles, the figures are the base measurements for that generation of the Infiniti Q45.
Frequently asked questions
How long is a Infiniti Q45?
199.2″ (16′ 7″) in its current generation, 71.7″ wide and 57.1″ tall.
How much does a Infiniti Q45 weigh?
3,882 lb at the kerb.
Will a Q45 fit in a garage?
At 16.6 feet it fits a standard 20-foot single garage with room to spare. A street parking space of 18 feet is comfortable.
Has the Q45 got bigger over the years?
Not materially, by the generations we hold.
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