Well took the Evo out to the track this weekend and it was fantastic... There were several nitro T-Maxx/Revo's out there and they got smoked. The HV 4.5 is so much faster than the HV 6.5. The only cars that gave me a run for my money were the big block 1/8 scale nitro truggies. Was on my third set of batteries when diasater struck. I just cleared a double double and then nothing, the motor just spun but no forward motion. OK, so the pinion came loose, no biggie. NOT... the shaft actually snapped off.. Don't know if it was a defect, too much power (upgraded from a HV 6.5 to a HV 4.5) or slipper was too tight or what. Sending it back to Novak for service. I Had to spend the rest of the day driving boring nitro cars...