The RTR TC3 is a pretty good deal, and the build quality has been pretty good on most of the ones I have seen.
However, here are the faults I have with it (and their all with the eletronics)
The speedo SUX- no brakes and no power switch, if all you are gonna do is stock racing and maybe 19T get yourself an LRP IPC Sport esc, Tower has them for $60 it goes down to 14Turns!!
Or IPC pro sport which has no motor limit for $95
The second complaint is with the Radio- it has very little adjustments and they can easily be bumped out due to the sliders they use for the adjustments, I would suggest replacing it with a decent sport FM system, the controls and adjustability are well worth the little bit of money you will spend... I like the Airtronics MX-3 and you can get it at Tower for $100!!!
Or the Futaba 3pm which is $120, you need to buy a servo with this one, but you will eventually end up upgrading to a better one in the long run-- check it out
Just add a stock motor and your ready to pass anyone, at least your electronics won't be holding you back....
So figure for $200 more to the RTR you can get the preformance you would see with the FT kit and still have a little money left over..... Or get a TC3 racer kit and build it yourself and save $50 over the RTR......Trust me you would be lucky to sell the RTR electrics for $50........