Originally Posted by oeoeo327
The rules stated aobve are from Tamiya's TCS rule book. You might want to check the USGT
thread for updated rules, as I'm pretty sure that RCGT died off a while ago.
RCGT is indeed alive and well, as the only real substantive change was 21.5(USGT) vs. 17.5 (RCGT). The X pattern tires remain the gold standard traction wise, and pretty much any body other than a 'touring car' body is allowed. The rest is just minor tweaks.
USGT works OK outdoors but really shines on modest size indoor carpet. RCGT works OK on indoor carpet but works best on the (typically) larger outdoors tracks and can be better for particular clubs that need somthing a little faster between VTA and full blown 17.5 blinky touring car. This is usuallyl due either to the size of the track, the seniority of the regulars, or the simple desire to use the same car for RCGT and Touring Car with a simple body/tire change. This also helps tracks to expand revenue via class offerings on race day(2 bodies+2 sets of tires being cheaper for most people than 2 complete cars with 2 different motors).
Bottom line, check and see which rules set your track/club/region/race is using, as the intent is the same, but there are a few minor details which might hem you up.