The 2015 Cadillac ATS-V Sedan has been spied undergoing testing in Germany at the Nürburgring.

The 2015 Cadillac ATS-V Sedan has been spied undergoing testing in Germany at the Nürburgring.

Cadillac has brought a generous batch of prototypes to test around the 'Ring as in the last few weeks we have seen not only the ATS-V Sedan, but also the ATS-V Coupe and the CTS-V. Seen here is the ATS-V Sedan wearing a thinner camouflage than in previous spy photos, providing us a better view of the power bulge, large air vents and the redesigned front grille which appears to be quite massive.

Developed to go up against the BMW M3 (F80), Cadillac's ATS-V Sedan will also feature a quad exhaust system as well as a rear diffuser and a big rear spoiler. Expect to find beefy alloy wheels and an uprated braking system to cope with the extra power. It is believed the model will make use of a V6 3.6-liter twin-turbo rated at around 425 bhp (317 kW).

As you would expect, the same engine is also rumored to star in the ATS-V Coupe and both cars should be introduced early next year, possibly at NAIAS in Detroit. There are some talks concerning a newly developed V6 3.2-liter twin-turbo engine rated at more than 500 bhp (373 kW) but nothing is certain at this moment.

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2016 Cadillac ATS-V Sedan spied on the 'Ring