Got mine together today bought the 1415/MMP combo geared it up its very torquey 26/87 48P need to find 32P equivalent. The motor fits ok I installed before I bolted the rear section to the main chassis. Had to dremel a little at the rear of the motor so it would slide back further. hardly noticeable because that huge motor covers where I ground. I turned on my Dx3s to test it bind it and center the servo. My scrolling wheel broke so I couldn't even drive today. remedied that problem with a brand New DX3R Pro from Indy R/C raceway and hobbies thanks guys. so far I think its gonna be a tough one to beat