I know it cost me around 35 $ to send my dead MMM to castle creation (0.5 Kg ...)
A PDF of one of there custom motor
http://www.petitrc.com/2007/articles...eam_ptityo.pdf
http://www.teamptityo.com/index.php?...pose&Itemid=32
There is some good video check out car number how much it out accelerate other cars