Chevrolet’s world-beating sports car gets some welcome updates for 2010. In addition to the regular 430-hp 6.2-litre V8 in the base model, Corvette now has a Grand Sport model  that adds a dry-sump oil system, rear-mounted battery, differential cooler, a short-throw six-speed manual, stiffer spring and stabilizer bars. It’s a quick and easy way to turn your new ‘Vette into a track rat. Meanwhile, the 505-hp 7.0-litre Z06 offers Porsche-beating performance and usability, while the carbon-fibre-bodied ZR1 blows minds with its 638-hp supercharged V8 engine, Brembo brakes and a 300-km top speed.