Thought this was kinda cool and thought of R/c's right away. Not sure how accurate it would be.. Says it goes up to 100mph, so all of you with smartechs with superchargers or nos, this wouldnt work.. 
http://www.walmart.com/catalog/product.do?product_id=4661205
http://www.walmart.com/catalog/product.do?product_id=4661205