10 Awesome Car Parts at one of the World's Largest Car Shows: SEMA 2015. SEMA features some of the worlds most amazing cars and incredible aftermarket car parts. Walking the showroom floors, here are 10 parts I found to be particularly cool from an engineering standpoint, including a variable twin-scroll turbo, exterior gas tanks, external damper reservoirs with fins, the Arial Atom's pushrod susp
Engineering Explained@youtube
play video