Quote Originally Posted by Greg Amy View Post
NEW

9.1.4.A. Purpose and Philosophy
The intent of the Super Touring category is to allow competition of production-based vehicles, at a higher level of preparation, using DOT-approved tires. Vehicles used in this category must be identifiable with the vehicles offered for sale to the public and available through the manufacturer’s distribution channels in the US. No chassis or engines older than 1985 will be eligible, except that model runs that began before 1985 are eligible (e.g., if a model was produced in 1983-1988, the 1983 and 1984 cars are eligible). The SCCA does not guarantee the competitiveness of any car.
Sorry about resurrecting an old thread, but this line from the GCR raises a real question: is my '66 Mustang eligible for ST with an appropriate corporate engine, under this provision?

And if so, why have the 1985 rule at all? I'd like to race my ITC '72 510 in ST, but can't due to this restriction. I am not interested in Prod or GT, but STU or STL look inviting.