Behold these spy shots of what we think is the upcoming Cadillac ATS. Posing as a CTS sedan in these spy pics, Caddy’s first-ever dedicated BMW 3 Series fighter is expected to bow in 2013 as a 2014 model and will ride on GM’s all-new Alpha platform that will also be used by the next CTS and Chevrolet Camaro.

The ATS mule wearing the body of a CTS sedan has had its wheelbase shortened, with all four wheels being far too close to the passenger compartment to make any sense. And if you look closely, you’ll see that the ATS mule has two places to insert fuel. And that’s where it almost got us: we though the second fuel meant we were looking at the Cadillac XTS and its plug-in hybrid (PHEV) powertrain. But after discussing it with the GM Authority crew, we think the second fuel cap is a by-product of the shortened ATS chassis (the first one is your standard fuel orifice in the current CTS sedan).

For those still thinking this to be an XTS prototype, consider that GM will be placing PHEV plugs on the driver’s side for the sake of convenience. And while we haven’t heard anything about an ATS PHEV, a hybrid version of the ATS has been rumored.

Hit up the source for more of these peculiar spy pictures.

[Source: Autoblog]