Heck, $400.00 bucks is a lot even if your 55. 65MPH? With a perfect tune and the right weather conditions and enough open area to run, Traxxas says it can be done. All I know is they rip. RPM front bumper and front a-arms should be the first things on your shopping list. Stay away from the red Traxxas turnbuckles, they won't last. Factory steel or Lunsford ones are the best choice. Have fun, Bob