Since its debut in 1998, the Audi TT has cut a striking figure and an impressive niche in the sports car market. Since 2009, the car has been available in the U.S. in quattro all-wheel drive only, further raising the benchmark. For 2011, the Audi TT gets a revised 2.0-liter TFSI engine and some appearance upgrades to further polish the car's...read full article