well i want to buy a present to my nephew. im looking in lego.com main page in power functions stuff and i dont understand what parts r suitable for the motor lets say. my question is this: do i have to buy some technic kits for wheels or theirs a kit with only wheels and chains that i can connect motor to them. another question is that i see big kits and small kits for cars lets say. i figure that the motors dont go on small kits and only work on the larg kits? can u tell me from which kits i can take wheels and chain wheels to build cars? thanxs for the answer.
