For nearly four decades Audi’s A4 series has been one of the industry’s best selling entry-level luxury vehicles. With various models offered within the series to entice any individual, the Audi S4 certainly appeals to the inner stock car racer in each of us. The 2013 S4 lineup will feature across the board updates including a stylized dashboard, sleeker exterior, reworked headlights and taillights, as well as a new electromechanical power steering system. The S4 model, releasing in both a sedan and wagon version, will further offer a 3.0 liter, 333 horsepower engine with enough juice to reach 60 mph in 5.0 seconds. As the S4 is expected to hit U.S. markets in the summer of 2012 so be on the lookout for more release information in the near future.