Hardware
The 2009 Infiniti G37 received a significant boost in horsepower for the new model year. Replacing the 3.5-liter powerplant is Nissan’s “VVEL” 3.7-liter V-6 engine. Shared with the Infiniti G37 Coupe, it is rated 328 hp under the hood of the sedan. It is mated to a new 7-speed automatic transmission or an optional, close-ratio 6-speed manual transmission. The standard driveline is RWD, with the G37x AWD models boasting Infiniti’s acclaimed ATTESA E-TS (Advanced Total Traction Engineering System for All Electronic Torque Split) AWD system. Fuel economy figures have not been released for the new models as of writing.
The 2009 Infiniti G37 Sport 6MT Sedan models feature a standard, close-ratio lightweight 6-speed manual transmission. All other models, including the AWD Sedan, feature a new 7-speed automatic transmission with manual shift mode via paddle shifters, downshift rev matching, quick-shift mode, and Adaptive Shift control. The suspension on the sedan is of a 4-wheel independent design with a double-wishbone front and a rear multi-link, both ends featuring stabilizer bars. The steering is rack-and-pinion, with vehicle-speed-sensitive power-assist. New for 2009 are available Sport Brakes with larger rotors and more powerful pistons to increase the sedan’s braking capacity. The G37 Sedan offers a Rear Active Steering system on the Journey and Sport models. With the system activated, the rear wheels are designed to turn up to one degree to add stability during turns and cornering. Braking technology includes standard 4-wheel vented discs with anti-lock brakes (ABS), electronic brake-force distribution, and brake assist.
