Maybe you can help us out here. A Carscoop reader, who prefers to remain anonymous, nabbed these photos of an identical pair of camouflaged prototype sedans at a tollbooth in Ohio.

The photos were shot from a distance with a cell phone camera, so it’s difficult to tell the brand and make of the vehicles. Our unnamed reader told us that the front end looked like a Cadillac but the rest of the car reminded him of a Buick, and we’ll agree with him.

A prototype version of Cadillac’s upcoming BMW 3-Series and Mercedes-Benz C-Class rival, dubbed the ATS, has been caught on video during road testing. Though still heavily camouflaged, it appears that the Detroit firm’s compact, rear-wheel drive sports sedan will continue with Cadillac’s Art and Science design language.

The new ATS sedan will be positioned below the CTS, taking its place as the Cadillac’s entry-level model. The introduction of the ATS will allow the next iteration of the CTS to grow in dimensions to better compete with Germany’s executive saloons like the BMW 5-Series and Audi A6.

The engine lineup of the ATS is pretty much speculation as of right now, though a supposedly official document that leaked onto the internet in January made word of three engine choices including a 270HP 2.0-liter turbocharged four-cylinder, a 330HP 3.6-liter V6 and a 470HP 6.2-liter V8 for the range topping ATS-V.