Maserati engineers have toned down a notch the camouflage on their latest Quattroporte prototype that was nabbed by our scoop photographers while undergoing tests at the Nürburgring race track.

It may not seem like a lot, but it’s enough to provide us with a better look at the rear window styling, which in previous spy shots, was disguised to give the impression of a fastback body style.

The new photos confirm the more conventional styling of the car’s roofline and rear end.

This new Quattroporte will be the Fiat and Chrysler Alliance’s flagship sedan model and as such, will sport the latest technologies including a new 8-speed automatic transmission from ZF combined with a start and stop system to will help reduce fuel consumption and CO2 emissions.

As recently reported after we saw a turbocharged prototype of the Ferrari California testing at the brand’s private track in Italy, the new Maserati model is believed to be offered with two new force-fed gasoline engines.

Car&Driver magazine reports that the engine lineup will include a range-topping turbocharged V8 with 520-horses and an entry-level supercharged V6 rated at around 420-horsepower, both of which are being developed by engineers at Ferrari.

From what we have heard, there’s a strong possibility that the next Quattroporte will debut at the 2013 Detroit Motor Show next January before it goes on sale worldwide later in the year.

Photo Credits: CarPix for CarScoop

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