GM has spent much of the past several months prepping for the debut of the all-new 2013 Cadillac XTS luxury sedan, and more recently has spared little effort on the forthcoming "BMW 3 Series-killer," the 2013 Cadillac ATS.
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RelayRides, a San Francisco based startup, has just gotten a lot of help.
The new ATS coupe receives several changes from the sedan version.
Special editions of the 2014 Cadillac ELR and 2014 Aston Martin Vantage Volante debut in time for the holidays.