The Audi TT Roadster is available with a turbocharged, 2.0-liter, direct-injection four-cylinder making about 200 horsepower or a 250-horse 3.2-liter V6 engine. The turbo four drives the front wheels and features a broad torque band, while the V6 is equipped with Audi’s Quattro all-wheel-drive system. Either version can be equipped with Audi’s Direct Shift Gearbox (DSG) transmission, now called S-tronic. So equipped, the 2.0 gets to 60 mph in less than 6.5 seconds and the 3.2 rockets to the same velocity in about 5.8 seconds. Also notable is an optional magnetically-charged adaptive suspension system.