|
Made a little more research, Appendix K was introduced by FIA in the yellow book by 1977 even if they were actually published in 1976, as historic evolved and more and more cars were coming out with a variety of periods and types, it was in 1987 that the pre-66 cut-off was intoduced for GT/T cars and as said, due to the Appendix J radical change between 1965-1966.
|