oka guys heres how it is
tools:-
- blender ( the easiest)
- biturn
- A3d ( just waiting to know if i can post this tool proprietery)
- a brain
- balls ( i dont want to be stormed with emails and ims wanting to know how to do it i dont need to know or guide you on how to do it in your private time

)
1. download the model posted here at the bottom dont worry about the ini files for now.
2. convert it to .3ds unless you get the ascii scene import for blender.
3. separate the model from the 3 main types collision, main body and the removables(bonet, boot and the doors, bumpers, and tires as presented at the bottom.
4. now make sure that you link the objects correctly. ie if i want to edit the hood (hood scoop) then you select the hood and while slected in edit mode(tab) you edit it so that it works else you get a floating scoop and no hood.
anything else let me know....