Originally Posted by Rubedude

These are the rules we employ at SMA for Vintage Trans AM.

Chassis Specification:
Any 1/10 4wd or Fwd sedan with 4 wheel independent suspension.

Weight Specification:
1500g weight

Body Specifications:
Any 190mm or 200mm body. 1960 to 79 Either HPI or Others suitable, SMA has made variation to include Australian Muscle.. Stock Car, Slanted GT or modern Japanese Bodies or any body post 1980's do NOT comply....

Tire & Wheel Specifications:
Tires-Any treaded HPI Vintage #4793 Fronts # 4797 Rears
Wheels- Any HPI Vintage 26 Front 32 Rear Example #3815 Fronts #3820 Rears

Five or Eight spoke wheels available in various colors. 0mm offset front wheels and 6mm offset rear wheels are intended for 26mm width fronts and 31mm width rear tires. 8-spoke Vintage wheels from #3805 through #3814, 5-spoke Vintage wheels from #3815 through #3822 and Vintage stock car wheels from #3854 through #3860, Vintage Wheel CC Type #33472 and #33473, Vintage Wheel DTP Type #33474 and #33475 are all legal wheels.

Ride Height Specification:
Minimum ride height is 5mm.

Motor Specifications:
21.5 + 2s lipo batteries No tuning rotors, must use OEM rotor 12.3-12.5mm (Motor itself can have timing as per approved 21.5 list)

Approved ESCs:
No Timing Just Stock or Blinky ESC ROAR approved spec software or USVTA list

Race Specification:
5 minute qualifiers
5 minute mains

Battery Specifications:
ROAR approved hard case batteries