From Infiniti press: The Infiniti M, which went on sale as an all-new 2006 model in 2005, captured essential elements of both a luxury performance sedan and an award-winning sports sedan, and developed them into a new level of engaging luxury and performance. The Infiniti M also has captured a number of prestigious accolades, including being named the top-ranked midsize premium sedan in the J.D. Power and Associates 2006 Automotive Performance, Execution and Layout (APEAL) Study. Together with the sporty G35, the rugged Infiniti FX and the luxurious Infiniti QX, the 2007 M gives Infiniti an exceptional lineup of dynamic luxury performance vehicles.
For 2007, the Infiniti M offers new option packages and more standard features. It is again offered in five models: the M35 Luxury (V6 rear-wheel drive), M35 Sport (V6 rear-wheel drive with Rear Active Steer and 19-inch wheels and tires), M35x AWD (V6 all-wheel drive), M45 Luxury (V8 rear-wheel drive) and M45 Sport (V8 rear-wheel drive with Rear Active Steer and 19-inch wheels and tires).
The Infiniti M is available with a choice of V8 or V6 engines, with the vehicles designated M45 and M35, respectively. The M45 features a powerful DOHC 4.5-liter V8, shared with the premium FX45. It is rated at 325 horsepower and 336 lb-ft of torque. The M35 utilizes an advanced DOHC 3.5-liter V6 rated at 275 horsepower and 268 lb-ft of torque. The V6 is part of the award-winning VQ engine series also found in the G35 and FX35.
Every Infiniti M utilizes an enhanced next-generation FM (Front Mid-ship) platform currently used on the G35 sedan, G35 coupe and FX premium crossover SUV. Approximately 60 percent of the platform design and components have been enhanced for use with the M. Like the previous generation, the redefined FM platform positions the engine behind the front axle. This positioning results in an optimized front-to-rear weight balance, which factors in weight transfer during key handling maneuvers.