AUTOSHenry Payne reviews the 2021 Porsche CaymanThe Detroit NewsThe 2021 Porsche Cayman GTS is a performance model of the brand's entry-level Cayman/Boxster line. While the base Cayman features a turbo-4 cylinder engine, the GTS features a screaming, 394-horse flat-6 engine.Henry Payne, The Detroit NewsThrough the fast, blind, uphill Turn 8 at M1 Concourse, the 2021 Porsche Cayman GTS stays flat, predictable with the throttle to the floor.Henry Payne, The Detroit NewsThe limits of the 2021 Porsche Cayman GTS, the best-handling chassis in autodom under $100K, can only be fully explored at a race track like M1 Concourse in Pontiac.Henry Payne, The Detroit NewsThe 2021 Porsche Cayman GTS builds on the standard Cayman with a 4.0-liter, 394-horsepower flat-6 engine bespoke to the GTS and the GT4 performance models.Henry Payne, The Detroit NewsWith its mid-engine, the 2021 Porsche Cayman GTS rotates beautifully through the challenging turns of M1 Concourse.Henry Payne, The Detroit NewsThe purposeful front end of the 2021 Porsche Cayman GTS. With the engine amidships, a frunk is under the front hood for storage.Henry Payne, The Detroit NewsThe simple, elegant rear of the 2021 Porsche Cayman GTS.Henry Payne, The Detroit NewsTake the long way home. The 2021 Porsche Cayman GTS thrives on the twisty roads of Hell, Michigan with 394 horsepower from its wailing flat-6 engine and sharp handling.Henry Payne, The Detroit NewsHell. The 2021 Porsche Cayman GTS in its natural, twisty-road habitat.Henry Payne, The Detroit NewsThe timeless profile of the 2021 Porsche Cayman GTS: mid-engine, rear-wheel-drive, two-seat sports car.Henry Payne, The Detroit NewsDetroit News auto columnist Henry Payne test drove the 2021 Porsche Cayman GTS at M1 Concourse's Champion Motor Speedway in Pontiac.Henry Payne, The Detroit NewsThe 2021 Porsche Cayman GTS offers useful cargo room front and rear.Henry Payne, The Detroit NewsFrunk. The front truck of the 2021 Porsche Cayman GTS can hold a carry-on suitcase . . . or gear for the track.Henry Payne, The Detroit NewsThe hatchback of the 2021 Porsche Cayman GTS can hold a tennis bag, luggage or golf bag.Henry Payne, The Detroit NewsThe 2021 Porsche Cayman GTS features big Brembo brakes. The GTS 4.0 badge refers to the 4.0-liter flat-6 engine amidships.Henry Payne, The Detroit NewsThe interior of the 2021 Porsche Cayman GTS is all business: bucket seats, seat two, stick shift, chassis controls at the ready.Henry Payne, The Detroit NewsWhere's the key? Jump into the 2021 Porsche Cayman GTS and the key is to the left of the wheel - just like the Le Mans race cars of yore.Henry Payne, The Detroit NewsThe cockpit of the 2021 Porsche Cayman GTS, including Sport Mode button on the steering wheel, manual shifter and console sleeve of control buttons.Henry Payne, The Detroit NewsThe 2021 Porsche Cayman GTS options a 6-speed manual as well as a dual-clutch automatic. The auto is quicker - but the manual more emotionally satisfying.Henry Payne, The Detroit NewsThe 2021 Porsche Cayman GTS doesn't have console cupholders - but pop-out cupholders from the dash. They are mismatched for the 2021 Porsche Cayman GTS's high-G-load handling.Henry Payne, The Detroit NewsThe analog gauges of the 2021 Porsche Cayman GTS display a wealth of digital information.Henry Payne, The Detroit NewsThe console screen for the 2021 Porsche Cayman GTS is small but useful, with infotainment and backup camera.Henry Payne, The Detroit NewsChanges between the 2021 Porsche Cayman GTS and last-gen, 2019 Porsche Cayman/Boxster (left) are small.Henry Payne, The Detroit NewsChanges between the 2021 Porsche Cayman GTS and last-gen, 2019 Porsche Cayman/Boxster (right) are small.Henry Payne, The Detroit NewsThe 2021 Porsche Cayman GTS competes with the Chevy Corvette C8, the first mid-engine Corvette. Both cars boast emotional, normally-aspirated engines.Henry Payne, The Detroit NewsThe 2021 Porsche Cayman GTS sports high-revving, 8,000 RPM flat-6. Cayman sales declined after the model line nixed the flat-6 in its base models at the end of last decade.Henry Payne, The Detroit News