Actually it is 1:14 scale
Recoil Pro:
http://www.sportwerksrc.com/Products...ProdID=SWK1460
RTR Sportwerks:
http://www.sportwerksrc.com/Products...ProdID=SWK1450
Parts are readily available from my LHS. Horizon Hobbies main webpage I think has the bulk of the parts listed on there. Another thing about the parts, they are very cheap in price.
As you saw in the photos above, to replace an outdrive set off the diffs, $7 for the kit. Foam tires come in a package of 4 tires, $21.
Guys that ran these cars last season, basically got it setup and ran it the whole season without doing any mods / part replacements etc. Zero maintenance over the course of 4 months of racing.