Infiniti said a range of athletic gear will be used for its luxury cars, called Infiniti Performance Line. The first car will be a reworked version of the G coupe, packing 348 hp when it arrives in December.

The 2011 Infiniti IPL G Coupe builds on the foundation of the second-generation Infiniti G Coupe rear-wheel drive model with extensive modification throughout the vehicle. The Infiniti IPL G Coupe's unique exterior includes a dramatic front and rear bumper/fascia design with integrated fog lights and black finishers, sculpted side sills, rear spoiler and chrome exhaust tips. Each part is shaped to accent the G Coupe's aggressively seductive styling. Combined with the exclusive 19-inch IPL split 7-spoke graphite-finish wheels and low-profile W-rated Bridgestone Potenza RE50A performance tires, the Infiniti IPL G Coupe projects a confident stance and road-ready attitude. The Infiniti IPL G Coupe is offered in just two exterior colors: Graphite Shadow and Malbec Black.

The Infiniti IPL G Coupe interior is designed to harmonize with the exterior styling, offering two color treatments - Graphite and Monaco Red (red interior only available with the Malbec Black exterior and 7-speed automatic transmission). All Infiniti IPL G Coupe interiors include red-stitched leather-appointed front sport seats with manual thigh extension and driver's power torso and thigh support adjustment, red-stitched steering wheel, Silk Obi aluminum trim, and aluminum pedals and footrest.

Infiniti made changes to both the engine management and exhaust systems on the 2011 IPL G Coupe to bump its pony count from 330 to 348 and raise peak torque from 270 to 276 lb-ft. In addition to yielding a more linear output curve, a 30-percent reduction in back pressure contributes to an even more visceral sound under full-throttle acceleration. Buyers can choose to pair it with either a standard six-speed close-ratio manual transmission or optional seven-speed, paddle-shifted automatic. In addition to adding stickier rubber, the IPL treatment also includes a comprehensive suspension revamp that brings stiffer front/rear spring rates, revamped shock tuning, sport-tuned steering, a Viscous Limited-Slip Differential (VLSD) and upgraded anti-lock brakes.

Pricing for the new 2011 Infiniti IPL G Coupe will be announced closer to its on-sale date in December.