Please make sure you have the latest F430 GT3 mod installed.
Tested AC 1.4 and working.
Big thanks to car modder for templates.
I added Pirelli PZERO tyres from chargingcar's tyre pack but screenshots were before that.. Here they are:
F430 GT3 - Rosso Mugello Pack 1.0
2 skins with plain red and red with black roof