Infiniti G Sedan

From Infiniti press: Just two years after a total redesign, the ground-breaking second-generation Infiniti G Sedan takes another leap forward for the 2009 model year with the addition of a new, larger 328-horsepower 3.7-liter VVEL V6 and 7-speed automatic transmission (as appropriate for a cutting-edge performance sports sedan, it is also available with a 6-speed manual transmission).

Now designated as the Infiniti G37 Sedan, other enhancements for 2009 include new available sport brakes with 4-piston front/2-piston rear calipers and large 14-inch front and 13.8-inch rear rotors (G37S Sport 6MT, G37S Journey with Sport Package); new 18-inch wheels (G37S Sport 6MT, G37x with Sport Package, G37S Journey with Sport Package); standard Scratch Shield paint (self-healing clearcoat paint finish) and two new exterior colors – Sahara Sandstone and Moonlight White; and revised interior trim, including softer touch lower door panels, brighter “Washi” aluminum trim color and a redesigned (dial type) seat heater switch.

The 2009 G37 Sedan is available in four models – G37 Sedan, G37 Sedan Journey, G37S Sedan Sport 6MT and G37x Sedan AWD.

While the G Sedan has been known since inception for its exhilarating, balanced dynamic performance, for 2009 it receives an injection of pure power with the addition of a new 3.7-liter V6. Based on the award-winning VQ-series V6, which has been named one of the “Ten Best Engines” by Ward’s Auto World magazine for 14 consecutive years, the new VQ37HR “VVEL” engine is rated at 328 horsepower and 269 lb-ft of torque (increases of 22 horsepower and 1 lb-ft of torque over the 2008 G35 Sedan’s 3.5-liter V6).

The G37 Coupe’s VVEL system combines hydraulic-controlled variable valve timing and electronically controlled variable valve lift on the intake side to help improve performance and response. The VVEL system also offers improved emissions and fuel efficiency over the previous 3.5-liter V6 design. The VVEL intake camshafts, featuring continuously variable lift control teamed with the Continuously Variable Valve Timing Control System (CVTCS), allow for a 7,600 rpm redline.

The engine also features increased cylinder block height (from the previous 3.5-liter design), ladder frame construction for greater rigidity, large crank journal and pin diameters, asymmetric piston skirts, twin knock sensors, an electronically controlled “drive-by-wire” throttle system, molybdenum coated lightweight pistons, Iridium spark plugs and a symmetric twin air intake system. The specially tuned dual exhaust system features equal length exhaust manifolds and low muffler exhaust backpressure to help improve engine breathing. Both intake and exhaust enhance driving pleasure with their authentic performance notes.

To help take full advantage of the new 3.7-liter V6, the G37 Sedan now comes with a standard (except for the G37S Sport 6MT model) 7-speed automatic transmission with Downshift Rev Matching, Drive Sport mode and ASC (Adaptive Shift Control) that allows for sportier shifts in performance driving situations. Solid magnesium paddle shifters are offered as part of the Sport Package for G37 Journey and G37x AWD models. The G37S Sport 6MT is again offered with a smooth-shifting, close-ratio 6-speed manual transmission.

Gallery: Infiniti G Sedan