Detroit Show 2012 Highlights: 2013 Cadillac ATS

The Cadillac ATS saloon is the firm’s latest attempt to crack the ultra-competitive BMW 3 series segment. Revealed at the Detroit motor show, it's based on an all-new lightweight rear-drive platform and features an advanced new turbocharged 2.0-litre petrol engine in its line-up.The ATS will go on sale in the US this summer, but UK sales are yet to be confirmed. A General Motors source told