Manufacturer's Suggested Retail Price (MSRP), also known as "sticker" price, is a recommended selling price that automakers give a new car that is above the invoice price paid by the dealer. It is a price that does not include any options that can be added to a particular car style. When shown as a range, the prices are starting MSRPs, without options, for multiple styles for that model.
This price range reflects for-sale prices on Cars.com for this particular make, model and year.
Best Bets get above-average mpg, class-average or better reliability, class-average or better crash-test ratings, and our recommendation.
These city and highway gas mileage estimates are for the model's standard trim configurations. Where there are optional features, packages or equipment that result in higher gas mileage, those fuel-economy estimates are not included here.
Expert Reviews 2 of 5
By Cars.com Staff
November 6, 2008
Vehicle Overview Infiniti's midsize sport sedan comes in M35 and M45 versions, denoting the 3.5-liter V-6 and 4.5-liter V-8, respectively, that power them. The car comes in rear- and all-wheel-drive variants, the latter called M35x and M45x. This report specifically covers the M35 and M35x; M45 and M45x are listed separately in Cars.com's Research section. Competitors to the M include the Lexus GS, BMW 5 Series and Mercedes-Benz E-Class.
New for 2009 The M35 and M35x receive a drivetrain upgrade this year, with 28 more horsepower than last year's cars. In the M35, a seven-speed automatic replaces last year's five-speed auto; the M35x keeps the five-speed. Also new is Infiniti's Scratch Shield paint, a clearcoat resin that can self-repair minor scratches.
Exterior Infiniti promotes the M's "low, aggressive hoodline [that] flows into the anchored shoulders." The body has short overhangs and a long, 114.2-inch wheelbase. Lightweight body components include aluminum-alloy inner and outer door panels, hood and deck-lid panels. A rear spoiler is available. The optional Sport Package adds unique exterior trimmings, though it's only available on the rear-wheel-drive M35.
Standard 18-inch alloy wheels
Standard xenon headlights
Standard keyless access with push-button startup
Sport Package adds unique bumpers, headlights and side sills, plus 19-inch wheels
Rear Active Steer angles rear wheels during turns to improve handling (Sport Package)
Interior The M sedan seats five in a well-appointed interior with textured wood or aluminum trim. Interior volume, at 105.2 cubic feet with standard equipment (103.1 cubic feet with the Premium Package), ranks between the GS and Infiniti's less-spacious European competitors. Cabin features include:
Power-adjustable front seats
Heated and cooled front seats
Dual-zone automatic climate control
Six-speaker, six-CD stereo
Available eight-speaker, two-channel or 14-speaker, 5.1-channel surround sound stereos, both by Bose
Available backseat DVD player
Available navigation system and backup camera
Available heated and power-reclining rear seats
Under the Hood The M35 and M35x have a standard 3.5-liter V-6; it's been upgraded over last year's 275-horsepower, 3.5-liter V-6. The M35 gets a new seven-speed automatic, while the M35x keeps last year's five-speed auto. With either one, a new Drive-Sport mode allows higher shift points and more aggressive kickdown than regular Drive. Both of the gearboxes employ a clutchless-manual mode.
303 hp, 262 pounds-feet of torque
Seven-speed (M35) or five-speed (M35x) automatic with Drive-Sport and clutchless-manual modes
Rear- or all-wheel drive
Safety Infiniti's optional Lane Departure Prevention system applies individual antilock brakes to steer the car as necessary to keep it in its lane. The system uses a camera to recognize lane markings, and it calculates the vehicle's speed and distance from them. It can be switched off. There's also a Preview Braking option that scans the road ahead for potential obstructions, including rapidly slowing cars. In such situations, it pre-loads the brakes for sharper response and alerts the driver with an audio chime. Other safety features:
Six airbags, including dual front airbags, side-impact airbags for the front seats and side curtain airbags for both rows
Electronic stability system
Active head restraints
Adaptive headlights that swivel several degrees to illuminate oncoming turns