After months of teasers and image leaks, the Cadillac ATS will finally have the sheets pulled off at next year’s Detroit Auto Show, with production set shortly thereafter. GM’s Senior VP of Global Product Development, Mary Barra, confirmed the next-gen sedan’s Detroit debut late last week, and recent rumors have the ATS coming equipped with a 2.0-liter turbocharged turbo-cylinder. Other possibilities include a 3.6-liter direct-injection V-6 from the CTS model. Judging by the leaked screens, a manual or paddle-shifted automatic transmission is a guarantee. We’ll have more on the Cadillac ATS at the January’s Detroit Auto Show.