Here is a video of my buggy on budget parts
Motor feigao 9L = $49.00
Sentilon 100amp HV $99.00
Not that I wanted to do a budget build , its just the stuff I had kicking around , the Sentilon ESC works great but you will need mechanical brakes to slow down ,the speed we figure with the 11T pinion is around 35mph . ultimately it will be 1515 1/Y powered on a 4Cell lipo pack . The next motor I want to try will be a plett Maxximum
http://www.youtube.com/watch?v=J9ZvLjpEGJ0