The SEMA Show represents a whopping  $43 billion of automotive aftermarket which is pretty spectacular. The show, which came to a close last week, brings together most segments of the lucrative US and international automotive industry, from hot rods and off-roads, to mobile electronics and collision repair. The recent show  had over 2,400 exhibiting companies and attendees from all over the world, exhibiting some of the hottest, newest automotive products.