TPC uses liquid/air intercoolers on their supercharged 911's. They mount the heat exchanger in the tail and the actual intercooler in the engine compartment. For their application, they claim that this design works much better than the air/air. Also, Ruf is using liquid/air intercoolers with their new supercharged motors.
As far as factory liquid/air systems go, you should look at the Ford Cobra, Lightning truck, and GT. With the Cobra and GT, tuners are using the stock liquid/air intercooler and ditching the supercharger for twin turbos. They can then make 600-800 rwhp through the stock liquid/air intercooler. Pretty impressive for a compact stock system.
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