Bojan Tarticchio has released a partial 1991 carset over on his site. It's the unfinished set which was being worked on by the Skunkworks team. Although not complete it is rather nice. Also, while at his site, it's worth downloading his 2002 cars. These are probably the nicest cars I've seen, a lot of work getting them spot on and designed for GP3v1.13! The link: www.grandprixgamer.com/bolid77 . Go and have a look for yourselves!