2012 Infiniti M M56
The 2012 Infiniti M M56 is a 420-hp 5.6-liter V8 with a 7-speed automatic w/adaptive shift control, manual shift mode w/downshift rev matching and rear-wheel drive. It starts at $59,200 MSRP and is rated at 19 mpg combined.
It makes 420 horsepower at 6,000 rpm and 417 lb-ft of torque at 4400 rpm, spinning to a 6,700 rpm redline. EPA fuel-economy estimates are 16 mpg city and 24 mpg highway (19 mpg combined).
The M measures 194.7 inches long on a 114.2-inch wheelbase and has a curb weight of 4,028 lb.
| Spec | Value |
|---|---|
| Price | |
| MSRP | $59,200 ($83,798 *) |
| MSRP with Destination | $60,095 ($85,065 *) |
| Destination Charge | $895 |
| Engine | |
| Engine Type | 5.6L VVEL DOHC 32-valve DIG aluminum-alloy V8 (VK56VD) |
| Displacement | 5.6 L |
| Horsepower | 420 hp @ 6,000 rpm |
| Torque | 417 lb-ft @ 4400 rpm |
| Redline | 6,700 rpm |
| Valvetrain | DOHC, 32-valve, VVEL |
| Bore and Stroke | 98.0 x 92.0 |
| Compression Ratio | 11.5:1 |
| Injection Type | Direct Injection Gasoline (DIG) |
| Drivetrain | |
| Drive Type | RWD |
| Transmission | |
| Transmission | 7-speed automatic w/Adaptive Shift Control (ASC), manual shift mode w/Downshift Rev Matching |
| 1st Gear | 4.783 (44 mph **) |
| 2nd Gear | 3.103 (68 mph **) |
| 3rd Gear | 1.984 (106 mph **) |
| 4th Gear | 1.371 (154 mph **) |
| 5th Gear | 1 (211 mph **) |
| 6th Gear | 0.871 (242 mph **) |
| 7th Gear | 0.776 (272 mph **) |
| Reverse | 3.859 |
| Final Drive | 2.611 |
| Fuel Economy | |
| City | 16 MPG |
| Highway | 24 MPG |
| Combined | 19 MPG |
| Recommended Fuel | Premium unleaded (required) |
| Tank Capacity | 20 gal |
| Suspension | |
| Front Suspension | Independent double-wishbone with coil springs and stabilizer bar |
| Rear Suspension | Independent multi-link with coil springs and stabilizer bar |
| Turning Diameter | 36.7 ft |
| Brakes | |
| Front Brake Disc | 12.6 x 1.1 in vented disc |
| Rear Brake Disc | 12.1 x 0.6 in vented disc |
| Tires & Wheels | |
| Wheels Front | 18 x 8.0 in |
| Wheels Rear | 18 x 8.0 in |
| Tires Front | P245/50R18 |
| Tires Rear | P245/50R18 |
| Dimensions & Weight | |
| Length | 194.7 in |
| Width | 72.6 in |
| Height | 59.1 in |
| Wheelbase | 114.2 in |
| Front Track | 62 in |
| Rear Track | 61.8 in |
| Cargo Volume | 14.9 ft³ |
| Curb Weight | 4,028 lbs |
| Weight Distribution (F/R) | 56% / 44% |
| Interior | |
| Headroom Front | 39.1 in |
| Headroom Rear | 37.7 in |
| Legroom Front | 44 in |
| Legroom Rear | 36.2 in |
| Shoulder Room Front | 58.4 in |
| Shoulder Room Rear | 56.7 in |
| Hip Room Front | 54.3 in |
| Hip Room Rear | 53.5 in |
* Amount adjusted for inflation to 2026 dollars
** Theoretical max speed per gear at redline