We have seen a bunch of cool electric longboards that can go fast. This DIY electric longboard takes it to the next level though. It has a dual wheel drive system with two motors to offer you a max speed of over 45mph. It offers 7.5 HP of brushless power and 18 miles range.
treyisgolfing is behind this cool project. You are going to need batteries, motors, power analyzer, and a few other parts to try this. More info is available on Instructables.