1. Is pretty common sense, a heatsink. Well......I looked high and low on ebay and every site I could think of for micro-RC. I figured a heatsink for the HPI micro RS4 or maybe a mini-z would work. Nope! I could not find a sutable heatsink. So....I stopped by my LHS and brought the car and they were able to help me out. It is not exactly what I wanted because it does not have a flat like the motor does but it would work and it was very cheap, only 3 bucks!!
http://www.maxxprod.com/mpi/mpi-29b.html By Mpi MAXX model ACC3921 for a 20mm size motor. Now i had to do some cutting to it and the top deck of the car but it fits.