If you dont mind the size of a full car radiator by all means do it. Put it infront of a window fan or something and with very little air flow Im sure its C/W would be pretty darn low. But thats a lot of fluid and a lot of size to work with. Definitely post pics if you do it

Someone here has an all copper civic radiator with like 9 120mms on it. If thats the route you want to go Id search for that thread.