2013 Cadillac ATS Preview Pictures, Features, Specifications, Options & Launch Cadillac Unvieled their 2013 Cadillac ATS at the 2012 Detroit Auto Show, 2013 Cadillac ATS is more powerful with less weight. Cadillac ATS will be available with three different engine variants, 2013 Cadillac ATS base variant is powered by the 2.5 liter 4 cylinder engine, [...]