INFINITI M45 Model History
New and Used M45 Prices, INFINITI M45 Model Years and History
All New and Used M45 Model Years and History
Infiniti revived their use of the letter M in their alphanumeric branding scheme in 2003. Assigned to a coupe and convertible from 1990 to 1992, the 2003 Infiniti M45 was marketed as a high-end, four-door sport sedan. A distant, rear-wheel drive model, the M45's positioning in the Infiniti line-up was as a performance-oriented alternative to the Q45 sedan. In fact, the 2003 Infiniti M45's power came from the same VK45DE eight-cylinder engine. The 32-valve, 4.5-liter V-8 powerplant generated 340 horsepower and was connected to a five-speed automatic transmission. Heavily equipped with standard amenities, the first generation Infiniti M45 included HID headlights, heated mirrors, front and side airbags as well as a 225-watt Bose premium audio system was included. The introduction of a second generation M45 in 2006 with a new athletic appearance, the luxurious vehicle was available with Rear Active Steer. Solely offered as a rear-wheel drive sedan from 2003 to 2007, the 2008 Infiniti M45x provided all-wheel drive for the first time. The Infiniti M45 was dropped after the 2010 model year in favor of an upgraded M56 sedan.