RTR are fine to get started, club races and sportsman class, but they lack lots at the pro level assuming everything is the same a race roller is much faster than a RTR, now one must take into consideration his/hers skill level, for on I could be driving the most expensive equipment money can buy, $780.00 chassi, $600.00 motor, $400.00 servos, and get my ass royally kicked by Drake with a 25 year old Kyosho Burns.