here there is only one guy i know with a gt4
he likes it
i dont know where he gets parts but you said thats not a problem for you
i heard people refer to them as brokomo before so maybe not very durable i dont know
the guy i know doesnt wreck very often so i couldnt tell
he is pretty fast too
but the car is old and i gotta think they may be working on a new car already
and the rtr comes with a .18 engine correct some races may not allow that engine because legally it is a .12 class
ntc3 is a good canidate cause it has great part support and great instructions but i had one and thought it wasnt quite durable enough for me it breaks kinda easily when wrecked compared to some other cars
i really like my mtx-3 it comes it a great package with engine pipe and header the only flaw is that it really needs to use front universals but everyone normally gets them anyway it includes nice stuff like graphite deck and shocktowers front and rear swaybars and centax clutch
the instructions arent the greatest so if youve never built a kit before that may be enough of a deterent but i know people who have built them as their first kit if you follow the diurections you will be fine a centax isnt hard either i never had one before but i followed the instructions and it worked fine
you definetly have plenty of options