Cadillac adds a coupe variant to the ATS line for the 2015 model year. Built on the same platform as the sedan, the coupe is offered with similar engine and driveline options. In coupe form, engine choices include a 2.0l turbocharged four-cylinder rated at 272-bhp and a 3.6l V6 rated at 321-bhp. Both rear-wheel-drive and all-wheel-drive models are available.