Quick answer
The 2013 Infiniti M56, the latest model year on record, is 194.9″ long, 72.8″ wide and 59.1″ tall on a 114.2″ wheelbase, and weighs 4,147 lb. At 16.2 ft it fits a standard garage and leaves 1.8 ft spare in an 18-foot street space.
Every Infiniti M56 generation, measured
| Generation | Length | Width | Height | Wheelbase | Curb weight |
|---|---|---|---|---|---|
| 2011–2013 | 194.9″ | 72.8″ | 59.1″ | 114.2″ | 4,147 lb |
ROWS 1·SOURCE NHTSA vPIC / Transport Canada
M56 year by year
| Model year | Length | Width | Wheelbase | Curb weight | Body styles |
|---|---|---|---|---|---|
| 2013 | 194.9″ | 72.8″ | 114.2″ | 1 | |
| 2012 | 194.9″ | 72.8″ | 114.2″ | 1 | |
| 2011 | 194.9″ | 72.8″ | 114.2″ | 1 |
ROWS 3·SOURCE Transport Canada vehicle specifications
Will a M56 fit
| Space | Typical size | This car | Verdict |
|---|---|---|---|
| Single garage | 20 ft deep | 16.2 ft | Fits, with room to open the door |
| Street parking space | 18 ft | 16.2 ft | Fits comfortably |
| Standard parking bay width | 8.5 ft wide | 6.1 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 943 cars within 10″ of its length | Difference |
|---|---|---|---|
| Width | 72.8″ | 73.6″ | −0.8″ |
| Wheelbase | 114.2″ | 112.6″ | +1.6″ |
| Curb weight | 4,147 lb | 4,041 lb | +106 lb |
ROWS 3·SOURCE ForCar, computed across vehicles of similar length
M56 against its rivals
Next to the Dodge Avenger, Cadillac STS and Ferrari 612 Scaglietti, the M56 is the heaviest of the four.
| Model | Model year | Length | Width | Curb weight |
|---|---|---|---|---|
| Infiniti M56 (this car) | 2013 | 194.9″ | 72.8″ | 4,147 lb |
| Dodge Avenger | 2014 | 192.5″ | 72.8″ | 3,501 lb |
| Cadillac STS | 2011 | 196.5″ | 72.4″ | 4,050 lb |
| Ferrari 612 Scaglietti | 2011 | 193.3″ | 77.2″ | 4,057 lb |
ROWS 4·SOURCE NHTSA vPIC / Transport Canada; rivals: same EPA class and body, most searched
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Frequently asked questions
Is the 2013 M56 bigger than the 2012?
No. The 2013 and 2012 M56 are the same size and weight.
Which is bigger, the M56 or the Dodge Avenger?
The 2014 Dodge Avenger is 2.4″ shorter and 646 lb lighter than the 2013 M56.
Dimensions from NHTSA vPIC and Transport Canada vehicle records, manufacturer-declared for 3 M56 model years, 2011 to 2013. 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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