The car you see here is a rendering based on one of two design proposals under consideration for the 2010 Chevy Impala, a rear-drive sedan to be built on the same Zeta rear-drive architecture as the 2009 Camaro and--as we revealed exclusively last month--also likely to underpin an all-new Pontiac Grand Prix. Unlike the Grand Prix, which is being pitched as a mildly tweaked version of the all-new Australian-designed and engineered Holden Commodore, the new Impala will feature unique sheetmetal from bumper to bumper.
A rear-drive Impala is a logical move for Chevy. It allows GM to increase the Impala's size, making it a clear step up from the all-new Malibu due next year. It also allows Chevy to offer a mainstream car with powertrains of more than 300 horses, including a range of V-8s. Finally, it provides a foundation for a two-tier Chevy range, composed of front-drive small and medium-size cars and rear-drive larger cars.
Building a new Impala off the Zeta architecture also will enable GM to spread some of the investment required for the Camaro across two model lines, as the cars will share mechanicals and numerous sheetmetal components under the skin. That eases the pressure on the Camaro to return the same profit margins Ford needs to justify building the Mustang, which shares few parts with any other FoMoCo vehicle.
Final decision on the new Impala's styling isn't likely until next year. But the car will feature Chevy's bold new corporate grille and an interior that builds on the substantial improvements in quality and presentation shown by the new Tahoe and Suburban.
Need To Know
• 6.2-liter V-8 is likely to be the top engine. Expect at least 400 horsepower, with cylinder deactivation for improved fuel economy. Also likely to be available will be GM's high-feature 3.6-liter V-6 and a 5.3-liter V-8.
• Standard transmission is likely to be GM's new six-speed automatic. Performance versions, badged SS, probably will be offered with a six-speed manual.
• Bold new grille is similar in execution to the 2008 Malibu's. Front overhang is short, and the wide front track means the wheels are pushed right to the corners of the car, giving it a sporty stance.
• Fast backlight gives a rakish, almost coupelike profile that pays homage to the beautifully proportioned Impalas of the late 1960s. Rear deck is short and trunk opening narrow to accentuate strong shoulders.
• zeta rear suspension also will be on new Camaro and Pontiac Grand Prix. Features beefy L-shaped single upper link, two lower links, and adjustable toe-control link. Coil-over shocks keep entire assembly compact.
• Zeta architecture is revealed in this X-ray view of the new Holden Commodore. Rear-drive Impala would share similar features under the skin, including strong box sections in the floor and gas tank mounted under the rear seat.