On this episode of HOT ROD Unlimited, the team heads to Vegas to see what's faster: a Factory Five kit car or a 542hp rear-wheel drive Lamborghini Gallardo. Associate Editor Jesse Kiser, Staff Editor Brandan Gillogly and professional driver Mike Essa pilot four of Factory Five's kit cars to see which one's the best on the 1/4-mile, road course, and street. The Mark IV Roadsters feature a 5.0L Coyote V8 and a 427ci from Summit Racing's new line of Factory Five drivetrain packages.