Money Fast, sleek 2021 Porsche Cayenne GTS coupe spices up SUV race with handling, comfort, tech July 5, 2020 Mark Phelan, Detroit Free Press Comments Off on Fast, sleek 2021 Porsche Cayenne GTS coupe spices up SUV race with handling, comfort, tech From highways to twisting roads around Michigan's Irish Hills, the Porsche Cayenne GTS was fast and responsive on the road and admired by passersby.