Gearheads are most likely already familiar with the amazing Ariel Atom (video from Top Gear), but if you're not.. it's essentially a metal exoskeleton strapped around a 4-cylinder Honda motor which gives the sub-$100,000 racer stratospheric performance numbers. But if the $60,000+ price tag is still a bit out of range, why not build your own like this guy did..

Found over at Make, more pics after the jump