We have expanded the Supermiata S1 rule set to allow all platforms at the same power to weight and opened the tire rules a bit.
For more info on the specific, visit the website: SuperGTRacing.com
https://www.facebook.com/SuperGTRacing
https://www.facebook.com/groups/RaceSuperGT
Clifs notes...
Buttonwillow 13CW last weekend with Speed Ventures. 100% stock, unmodified. Racing the the turbo Supermiata in S1 so I only did one session in the GT350. Finally got a clean lap without traffic then bobbled the last turn. Drat! Tires were a bit too hot by then. Checkered flag out so that was it...