Making their world premiere today at the 2012 SEMA Show are two new Acura ILX compact sedan builds, one for the street and the other for the racetrack, marking the return of the Japanese brand to the Las Vegas aftermarket show after a six-year hiatus.

The 2013 ILX “Street Build” project car was made to demonstrate the customization possibilities for enthusiasts.

At the heart of the Civic-based model is an upgraded 2.4-liter gasoline unit, which with the help of a supercharger kit from CT Engineering and an ECU tune with Hondata’s FlashPro, now produces 250-horsepower

The FWD model is also fitted with a prototype SP Elite exhaust from Greddy as well as aero components from the Acura Genuine Accessories lineup, 19-inch Volk G25 wheels shod in Pirelli P Zero tires and Tein Street Advance coilovers.

The ILX Endurance Racer developed and built by Team Honda Research-West, is a different beast altogether. Set to make its competition debut at next month’s 25 Hours of Thunderhill endurance race, the ILX was prepared to NASA U.S. Touring Car specs.

The competition model was stripped down to the bare metal and re-assembled from the ground up and features a race-spec powertrain and chassis, along with all the necessary safety features.

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