Introduced this year, the 2006 Infiniti M35 luxury sport sedan rides on a modified version of the G35's FM platform. It's also longer, making space for more passenger legroom and a 15 cubic foot trunk. The 2006 M35 comes in three trims. Both the Base and Sport offer rear-wheel drive, while the M35x features intelligent AWD, which apportions torque 50/50, but then makes adjustments according to road conditions. All trims share a 280-hp, 3.5-liter DOHC V6 and 5-speed automatic with paddle shifters, averaging 18/25 mpg. Reviewers agree that the M35 seems to blend refined performance with upscale comfort, at a much cheaper price than competitors such as the BMW 5-series and Mercedes Benz E Class. The mid-size sedan also prides itself on its technology, claiming to be the most advanced Infiniti. Much of these items are available as options, including a lane departure warning system, intelligent cruise control, and adaptive headlights. Base models start out with an array of power features, including push-button ignition, a sunroof, power tilt and telescopic steering, and power front seats. Leather upholstery and Rosewood trim add to the elegance. The Sport model provides a stiffer suspension, heated and cooled sport seats, alloy trim, and Rear Active Steer, which helps smooth out cornering capabilities. All trims come with a full complement of safety features, including traction and stability control, ABS brakes, and dual front-side and side curtain airbags. The Base starts with 18-inch wheels, while the Sport gets 19-inch wheels. Most owners have fallen in love with the 2006 M35, making particular note of its optional navigation system, overall comfort, smooth ride, and decent acceleration power. The biggest complaints centered around the low fuel economy, and a bland exterior that doesn't match the luxurious interior. Rear visibility is a drawback, prompting many to opt for the optional rearview camera. Other drivers complain about the lack of a 6-speed transmission and the noticeable road noise with the 19-inch wheels.