INFINITI M45 vs INFINITI M56
Overview | |
Years produced2003-2004 | Years produced2011-2013 |
MSRP$52,150 | MSRP$61,200 |
Listings22 | Listings9 |
Ratings & Reviews | |
User Reviews | User Reviews |
Expert reviews | Expert reviews |
Reviews Summary | |
Reviews Summary | |
No video found | No video found |
Popular Features & Specs | |
Engine4.5L 325 hp V8 | Engine5.6L 420 hp V8 |
Drive TrainRWD | Drive TrainRWD |
Seating Capacity5 | Seating Capacity5 |
Horsepower325 hp @ 6400 rpm | Horsepower420 hp @ 6000 rpm |
MPG City16 | MPG City16 |
MPG Highway21 | MPG Highway24 |
Engine | |
Engine Name4.5L 325 hp V8 | Engine Name5.6L 420 hp V8 |
Torque336 lb-ft @ 4000 rpm | Torque417 lb-ft @ 4400 rpm |
Horsepower325 hp @ 6400 rpm | Horsepower420 hp @ 6000 rpm |
DrivetrainRWD | DrivetrainRWD |
Fuel Economy | |
MPG City16 | MPG City16 |
MPG Highway21 | MPG Highway24 |
Interior | |
Leather SeatsStandard | Leather Seats |
Seating Capacity5 | Seating Capacity5 |
Key Features | |
Navigation SystemOptional | Navigation SystemStandard |
Sunroof/MoonroofStandard | Sunroof/MoonroofStandard |
Safety | |
Front Crash Overall | Front Crash Overall4 |
Side Crash Overall | Side Crash Overall5 |
Dimensions & Capacity | |
Cargo Space14.9 cu ft | Cargo Space14.9 cu ft |
Curb Weight3958 lbs | Curb Weight4032 lbs |
Height59.4 in | Height59.1 in |
Length194.1 in | Length194.7 in |
Width71.1 in | Width72.6 in |
Wheelbase114.2 in | Wheelbase114.2 in |
Maximum Payload1066 lbs | Maximum Payload1111 lbs |
Number of doors4 | Number of doors4 |
Overview | ||
Years produced | 2003-2004 | 2011-2013 |
MSRP | $52,150 | $61,200 |
Listings | ||
Ratings & Reviews | ||
User reviews | ||
Expert reviews | ||
Pros & cons | ||
Summary | ||
Video | No video found | No video found |
Popular Features & Specs | ||
Engine | 4.5L 325 hp V8 | 5.6L 420 hp V8 |
Drive Train | RWD | RWD |
Seating Capacity | 5 | 5 |
Horsepower | 325 hp @ 6400 rpm | 420 hp @ 6000 rpm |
MPG City | 16 | 16 |
MPG Highway | 21 | 24 |
Engine | ||
Engine Name | 4.5L 325 hp V8 | 5.6L 420 hp V8 |
Torque | 336 lb-ft @ 4000 rpm | 417 lb-ft @ 4400 rpm |
Horsepower | 325 hp @ 6400 rpm | 420 hp @ 6000 rpm |
Drivetrain | RWD | RWD |
Fuel Economy | ||
MPG City | 16 | 16 |
MPG Highway | 21 | 24 |
Interior | ||
Leather Seats | Standard | |
Seating Capacity | 5 | 5 |
Key Features | ||
Navigation System | Optional | Standard |
Sunroof/Moonroof | Standard | Standard |
Safety | ||
Front Crash Overall | 4 | |
Side Crash Overall | 5 | |
Dimensions & Capacity | ||
Cargo Space | 14.9 cu ft | 14.9 cu ft |
Curb Weight | 3958 lbs | 4032 lbs |
Height | 59.4 in | 59.1 in |
Length | 194.1 in | 194.7 in |
Width | 71.1 in | 72.6 in |
Wheelbase | 114.2 in | 114.2 in |
Maximum Payload | 1066 lbs | 1111 lbs |
Number of doors | 4 | 4 |

By: CarGurus + AI
At CarGurus, our team of experienced automotive writers remain at the heart of our content operation, conducting hands-on car tests and writing insightful guides that are backed by years of industry experience. To complement this, we are harnessing AI to make our content offering more diverse and more helpful to shoppers than ever. To achieve this, our AI systems are based exclusively on CarGurus content, ratings and data, so that what we produce is both unique to CarGurus, and uniquely helpful to car shoppers.



































