GM is investing heavily in its Grand River Assembly plant. Recently, the automaker announced it's pouring $190 million into the Lansing, Michigan facility, and one of the models expected to be built there is the upcoming Cadillac ATS. The ATS will slot below the CTS and will be built in a range of body-styles. According to GM Inside News, the ATS will first be launched as a sedan, with a coupe and convertible to follow behind. Eventually, a V-Series version will also be produced.
GM Inside News also reports that they have verified a timetable for the release of the ATS variations. The sedan will be released in the fall of 2012, as a 2013 model. Nine months later, a two-door will be made available as a 2014 ATS model. Another nine months after that and a convertible ATS will hit the streets. And of course we'll get to see a 2015 ATS-V as well.
Rumor has it that the ATS will be available with a wide range of engine options, starting with a naturally-aspirated four-cylinder that will be standard, while the 2.0-liter turbocharged four-cylinder and a V6 will also be offered. For the V-Series, it's been said that Cadillac will stick with the V8 formula and shove an eight-cylinder unit under the hood of the ATS.
[Source; GM Inside News]