A fully camouflaged prototype of the 2015 Mercedes-Benz C-Class Cabriolet has been spied undergoing testing near the Nürburgring track in Germany.

A fully camouflaged prototype of the 2015 Mercedes-Benz C-Class Cabriolet has been spied undergoing testing near the Nürburgring track in Germany.

Yesterday there was a report indicating the C-Class Coupe will be out in December 2015 which could mean the Cabriolet is programmed for a 2016 release, unless Mercedes-Benz will decide to launch the open-top version before its fixed roof sibling. It could actually happen taking into account the C-Class Cabriolet has been spied several times while the coupe is still MIA.

A spiritual successor of the CLK, the new C-Class Cabriolet will feature a multi-layered soft top while the design will mimic the sedan but with a revised bodywork after the A-pillar so expect to find more curvaceous lines creating a more elegant look. So far there aren't any spy shots of the interior but earlier this year Mercedes-Benz showed a mockup of the cabin at its museum in Stuttgart. It had a familiar layout but with power tilt & slide front seats and an extra row of buttons controlling the roof.

The C-Class Cabriolet is rumored to get a starting price below the SLK (set to become SLC) and will reportedly be unveiled in September 2015 at the Frankfurt Motor Show. Engine lineup will be largely carried over from the C-Class Sedan & Estate, all the way up to a V8 4.0-liter twin-turbo with 476 HP in the C63 AMG and 510 HP in the C63 AMG S.

Mercedes-Benz C-Class Cabriolet spied near the Nurburgring