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Audi RS7 Dynamic Edition is an expensive styling package

How much dynamism does one man need -- nay, deserve? Audi attempts to answer that with the RS7 Dynamic Edition, a trim package for the current RS7, which is pretty dynamic to begin with. The Dynamic Edition provides no power or suspension upgrades over the regular RS7, preferring to merely look more dynamic (as a proof-of-concept from the "Audi exclusive" program).

Watch Tesla Model S testing new titanium armor

In a missive signed by Elon Musk himself, Tesla announced it would be adding titanium plates and aluminum deflectors to all new Model S sedans and offering free retrofits for the 20,000 or so existing EVs. The company earlier offered an over-the-air software update to raise the ground clearance of the Model S so the car would be more likely to clear dangerous road debris. The actions were in response to well-publicized fires in the electric luxury sedans.

Sir Stirling Moss, 81, retires from racing

While participating in a live interview with Joe Bradley of RadioLeMans.com on Thursday, Sir Stirling Moss announced his retirement from the sport that he loves. "This afternoon I scared myself, and I have always said that if I felt I was not up to it or that I was getting in the way of fellow competitors, then I would retire," Moss said. Moss is one of the most recognizable figures in motorsports, with a career that has spanned more than 60 years.