The Infiniti M captures the essential elements of both luxury and performance in a 4-door sedan. Engine choices include a 3.5-liter, 275 horsepower V-6 and 4.5-liter, 325 horsepower V-8. For 2007, the Infiniti M offers new option packages and more standard features. Five models are available, including both rear- and all-wheel drive versions. Amenities include Bluetooth Wireless Connectivity, Push Start Ignition, and 10-way adjustable power driver and front passenger seats.