There is currently a new 2006 wad being compiled my members of this community, a release date is as yet still not known but I can say it will not be too far away, browse this forum and you will soon find the relevant thread so you can follow progress.
The search function is a bit on the 'dicky' side atm so don't rely too much on it, it's a problem we have since we have upgraded the phorum software, maybe we'll get too it sometime soon.
If you cannot wait for a new cars.wad have a read-up on the GP4FAQ (stickied topic) for updating info.
btw, welcome to the forums,
[
www.mediafire.com] Some say you should click it, you know you want to.
[
www.gp4central.com] <----GP4 Central