Absolutley nothing. To be perfectly frank, I run this site, and I do not support the theft of intellectual property. What you are asking is for users on this site to steal the cars from Codemasters and rip them for use in GP4, when modders on this site have already created 2015 cars from scratch, which apparently aren't good enough for you. If you want them that badly, you do the job, but don't put them here, or there'll be trouble. The last thing this site needs is a copyright lawsuit, something which has already happened to another site for publishing cars ripped off from Codemasters.
No doubt someone, somewhere will work out a way to do it, however it will not be welcome here, this site has a zero tolerance policy. Besides, our modding crew is so damn talented they don't need to steal from other people. Show them the respect they deserve, use their work, and commend them for it. That is all.
[
www.mediafire.com] Some say you should click it, you know you want to.
[
www.gp4central.com] <----GP4 Central