Audi R8 Green Hell Edition will make US customers green with envy

A motorsports-inspired Audi R8 special edition is coming, but we won't get it in the U.S. Audi announced the R8 Green Hell Edition on Tuesday to celebrate the brand's racing success. The Green Hell moniker comes from the nickname of Germany's Nürburgring racetrack, but the car isn't just a tribute to the track. Audi has won the...