Xray 2008(or something similar) if you're on a budget & want to race.
check the diff outdrives for wear, also check the underneath of ANY used carbon chassis for damage/excessive wear
I spend no more time working on my Xrays than my Tamiya's (after the intial rebuild & setup)....apart from replacing belts.
Its a choice on how anal you want to get with maintenance.
Xrays seem alot tougher than some other cars so less things break on crashes.