I used several different Gr.3 cars, but mostly Tom’s Castrol Supra.  The ones that didn’t work I used the McLaren Gr.3 and the Mazda that I got with the preorder I believe.  I don’t have any of those tunes saved to share, but you can find good ones that’ll work in Praiano’s tunes.  I think there was 1 race, maybe Maggiore that I could only win with the Aston though.