Cadillac’s award-winning ATS sedan is about to spawn its first spinoff, an ATS Coupe, which will make its debut in January at the Detroit Auto Show. The new coupe, which will target the likes of the Mercedes-Benz C-Class Coupe and new BMW 4-Series, will eventually go on sale in the summer, as a 2015 model.

The information was first reported by Edmunds, which is also claiming the ATS Coupe will feature the same powertrain lineup as the current ATS sedan. That means a base 2.5-liter four-cylinder engine, mid-level 2.0-liter turbo four and range-topping 3.6-liter V-6. ATS Coupe buyers should also have the choice of a six-speed manual or six-speed automatic transmission.

Cadillac is planning to launch a high-performance ATS-V sedan in the near future, and it’s likely the ATS Coupe will also have its own high-performance variant.

As previously reported, the ATS Coupe won't follow the CTS Coupe's dramatic departure from the CTS sedan's shape, instead favoring a shared set of lines, but with longer door openings and a revised roof line. A second generation of the CTS Coupe is unlikely to be launched, meaning Cadillac’s future two-door lineup will consist of only the ATS Coupe and ELR.

Other rumored variants of the ATS include the aforementioned ATS-V version, as well as a wagon and a convertible.

For more of our coverage of the 2014 Detroit Auto Show, click here.


Follow Motor Authority on Facebook, Twitter, and Google+.