2013 Cadillac ATS puts an American spin on luxury

By PAUL STENQUIST General MotorsThe 2-liter twin-scroll-turbocharged 4-cylinder engine that will power the Cadillac ATS. The engine develops 135 horsepower per liter. On Wednesday, Cadillac introduced a 2-liter turbocharged 4-cylinder engine for its Applying their lessons to what will be their smallest production vehicle since the disastrous Cimarron of the 1980s, the 2013 Cadillac ATS will be the General Motors di