Stock car classing and tech changes

[Popsracr@aol.com]

OK folks, here's the issue:

What happens to cars that are classed in stock classes when the technology 
(products) that make them fast are no longer available and thus no longer at 
the same performance level as in prior years?  This is regarding the loss of 
the BFG G-Force/R1 tires that have made many stock class cars competitive.  
Is there any consideration by the SEB/SCAC to reconsider the classing of cars 
when they are no longer the same formula?

Jim