I'm not sure, but I think I read somewhere while doing research for another mid-engine project that the side ducts on the rear quarter panels do not pull in enough air to efficiently cool a radiator because of the turbulance down the side of the car. A mid-engine car already has plenty of heat in the back. Add an intercooler and a radiator just seems like it's going to create a problem. Does anyone know of a mid or rear engine car that has the radiator in the back? I only know of one, and it was mounted horizontally above the engine where an intercooler was supposed to sit. Not the best solution.