SEMA is all about fancy paint and crazy body work, but some people understand that there’s more to a car than just sheet metal. The engine and the frame are the barest of bare essentials. They’re so important, but they’re not something you get to see in the average course of life. Most modern cars are built on unibody chassis anyway, so you went even have this option. Still though, SEMA gives us a chance to see the hidden bits of cars in a new light.