With all the crazy and wild cars at the 2013 SEMA show sometimes its refreshing to see an automobile that doesn't have any wild paint job or massive blower sticking out of the hood. Instead, clean and understated is the name of the game and this Audi S4 is the epitome of just that. With a stock body, the focus on this car is its stance and rather stylish wheels. The real gem is the center lock conversion. That's right these wheels bolt onto this S4 via a race spec centerlock system. Very cool and very clean. Just the way we like it.