Requirements for entries in the Winston Cup Series:

• 1981-1988 NASCAR sedan
• NASCAR-based model kit, styrene or resin
• Numbers and decals to replicate a NASCAR racecar (authentic decals suggested, but fantasy liveries are acceptable)
• Full interior with rollcage
• Driver figure required, must be realistic
• H&R chassis (HRCH02)
• Oillites only, no bearings (Parma)
• 1/8" axles, front & rear
• No independent front axles
• Pro Track N330 or 329 tires (stock width)
• Stock car style wheel inserts required
• H&R 18k motor (HRHM1)
• 200 gram minimum weight
• 9.60 breakout