That is one problem with NASCAR there really isn't any Technology development goign into moder cars. All are Rear wheel drive, when majority these days are front wheel. All are carbed and I don't know of any car today that is. Body shape is specified by the rules. About the only thing that I can think of that could beneifit from it is suspension, but how much does turning left on sever banking going to thelp improve cars for normal road work. Formula one is where the development is, and maybe if the MFGs run some in a SCCA, TransAm, Rolex type class they could actually improve the cars.