From what I have found 230 was the total production for the 92 Daytona IROC with the Turbo I. Yes 1992 was the last year for the Turbo I motor, AA Body, P body, J body and G body. That is the first I every heard about the Shelby Sales code. I have seen a couple of these cars in person even way back in 1993. They all had the Shelby sticker on the corner of the hood and one on the rear bumper. Those are factory stickers, a friend of mine found all the decals in the dealer catalogs years ago.