Snowmobiles have their radiator above the track under the seat, but they rely on the huge cooling effect of changing snow to water. Some snowmobiles will overheat just idling as there is no snow or airflow over the radiators.
I'd imagine 3 or 4 snowmobile rads would cool something like a metro once underway but with no good way to blow air over them, the car would overheat in city traffic.
I think that's the biggest problem, the radiator would have to be sized to cool the engine even with no air flow... You might need to do have the whole bottom of the car act as a radiator and maybe part of the top...
Ian
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