Ah, Facebook. How did we ever get along without knowing what our friends had for breakfast? But it did the United States a giant favor by gauging reaction to the Audi TT RS, which has been on sale in Europe and is the sportiest version. A petition of 11,500 signatures on Audi of America’s Facebook page was enough to convince the suits to bring the car to the U.S. too. So soon we’ll be able to enjoy a turbocharged 2.5-liter motor making 360 hp (recent winner of an International Engine of the Year award). There will be the option of a seven-speed S tronic transmission, which is Audi’s way of saying DSG, the VW dual-clutch setup. Average fuel consumption with this trans is 27.67 mpg. Coupe and roadster models will be available.