What do you prefer? Guess I'm undecided right now. My last nitro powered car was a Ofna Tempo II with a .21 O.S. motor. I actually still have it packed away. Thinking of digging it out and going through it and firing it up. I also really like my Sc10 and all the new technology like lipo's and brushless motors. For now I'm up in the air on my choice.