It's no secret that Audi's planned expansion ... Instead, a removable targa roof that can be detached and stowed (in your heated and carpeted garage?) will be fitted to the R8 to allow open ...

Nobody is going to argue that the Audi R8 diesel will be saving the earth. It won't. But, like the Tesla Roadster, a diesel version of the awe-inspiring Audi supercar could go a long way towards ...