Chevy also confirmed an ECO version of the '13 Malibu, though this easiest model retains the 2.4-liter configuration. It launches ahead of the 2.5-liter Malibu’s early next year, and will be rated 26/38 mpg.
The '12 Corvette Z06 with the Z07 performance package and the ZR1 will get new tires, bringing maximum lateral acceleration to a manufacturer's claimed 1.10 g. The Michelin Pilot Sport Cup Zero Pressure tires are 285/30R19 front, 335/25R20 rear.
At Cadillac, the 2012 SRX finally replaces the 3.0-liter V-6 with the 3.6-liter version, with no expected effect on the 18/25-mpg EPA numbers. Chevrolet has announced that its 2013 Chevrolet Malibu will get a new version of GM's 2.4-liter four, stroked to 2.5 liters. It makes 190 horsepower and 180 pound-feet of torque, up 20 each, and will proliferate through the GM lineup, including the '12 Buick Regal. In the SRX, the 3.6 is rated 300 horsepower and 260 pound-feet of torque. At the same time, the '12 CTS's 3.6 has been upgraded by 14 horses and 2 pound-feet to 318 horsepower and 275 pound-feet. EPA remains 18/27 mpg, Cadillac
