yah...there's a BIG HUGE button on the top of page (how does it come u did not see it ???)..-> that leads you to the downloads list.
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THIS IS MOSTLY 'MOD'...that means: its skins ! so either you have the very similar car (same format file) and just put the skin on it, or you don't then u'll have to edit the picks OR the uv map or a (very) similar model...simple as 1,2,3.
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Times to times, on racedepartment u'll find a full pack (skins AND a car): Just have to turn it into somethin' u can use in Daz (simple as 1,2,3)...put a nice G3F bab' nxt to it and start rendering !!