FIRST LOOK: Porsche Cayman GT4 RS – 493bhp GT3 engine, £108k, the loudest RS model ever! | Top Gear
What would happen if Porsche wedged the 493bhp, high-revving, 4.0-litre naturally-aspirated flat-six from the 911 GT3 into the Cayman? Well… this. With Porsche’s pure electric future beckoning and naturally aspirated…
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