America’s aftermarket industry show, the SEMA Show marks a gargantuan gathering of both significant aftermarket manufacturers and also some of the most stunning custom cars. Centered Las Vegas, SEMA marks the largest collection of these sorts of companies in one place. Given the size, you can bet there are some very nicely built Audis and significant Audi tuning players at SEMA, you just have to dig through countless rows of muscle cars, monster trucks and seemingly everything else before you find them.