I would like to get my son a TC4 club racer. I am racing the 6.1 World's Car. We also race mini buggies indoors this time of year and that is what he is currently racing. I race a buggy as well and they are definitely harder to drive and less reliable than the touring cars which are a much bigger class anyways. I just ordered a motor and ESC. I'll buy the car locally. I have pretty much everything else it will need to get it driving. What are some upgrade parts I should look into? Mainly, what breaks a lot and what should be upgraded for reliability? Thanks!