Expected to be powered by the CTS-V's twin-turbo V6.
Just the other day, Cadillac announced the special, final edition of its current-generation CTS-V Coupe, while promising that more V-Series models were on the way. Now, the company has been caught testing what seems to be an upcoming ATS-V Coupe. The BMW M4 and Mercedes C63 AMG-fighting coupe is expected to boost the CTS-V's twin-turbo V6 engine which should make at least 420 horsepower. Rumors of a V8 model are also still floating around.
Check out the video, courtesy of The Fast Lane Car: