The future generation 2014 Mercedes C Class was recently spied again while driving on the streets of Stuttgart. Unfortunately, the 2014 C Class prototype is still heavily camouflaged. This means that we're not going to see the finished product anytime soon. However, various sources are reporting that Mercedes is going to unveil the new C Class (2014) in January next year at the Detroit Auto Show. The 2014 C Class is expected to go on sale in August next year.