Hi, they're a pretty quick car out of the box. ive only made a few suttle changes to get it how i like it
http://www.petitrc.com/setup/yokomo/...komoBMax4.html check that out for more setups
if your going to get one then get hold of a set of carbon fibre shock towers from xtreme rc, they're a direct replacement from the nastey weak plastic ones and you'll struggle to break them

ive had a few offs and im yet to break anything

getting hold of spares is easy enough and suprisingly cheap for a yokomo car. i love mine.
They're a very easy car to drive fast.
Hope this helps