AutoCar's Matt Prior tests the new Porsche Cayman GT4, which gets 380hp from its 3.8-liter flat six engine, to answer one simple question: is this the greatest Cayman ever made?

American muscle cars typically have a difficult time with Euro-centric auto journalists, but the staff of Autocar were wowed by the new Corvette C7 Stingray, particularly given its relative bargain pricetag compared with European supercars.