This outrageous widebody Aventador was one of the stars of SEMA 2014, and it looks like Liberty Walk has something equally extravagant planned for this year's show. Based on an Audi R8, the new body kit includes a new front splitter, rear diffuser, ducktail rear wing, side skirts, and wide fenders, while an Airrex suspension system ($8,900) slams the supercar closer to the ground. The cost of the full carbon-fiber reinforced plastic (CFRP) body kit is $21,620 for the R8 V8, and $23,220 for the V10-powered Audi R8. Worth the investment?