If you are among the Porsche purists still unhappy that the company is cramming smaller displacement turbocharged inline-4 engines under the hoods of some cars and are hoping for a return to the naturally aspirated flat six of yore, you might not be happy about the new 2018 Porsche Boxster GTS and Cayman GTS. Both of the cars still pack turbo fours inside their mid-engine chassis. The good news is that the turbo fours offer more power and torque than the flat sixes that lived in the engine bays previously.
Both the GTS models use the same 2.5L turbo flat four that are found in the Cayman and Boxster S models. Rumors have been circulating that Porsche might move back to the flat six in some Boxster and Cayman models and with these cars both getting the flat fours, that rumor is looking more and more inaccurate. The only hope for flat six fans is that the Cayman GT4 or Boxster Spyder might get the engine.
The upside to those flat four turbo engines is that the Cayman and Boxster GTS cars both get a power bump compared to the lesser S versions of both cars. The turbo four in GTS guise makes 365 hp and 317 lb-ft of torque. Both of those numbers are up impressively from the flat sixes that used to power GTS versions of the car to the tune of 35 hp and 8 lb-ft of torque.
The torque numbers do vary on both GTS cars between the manual and 7-speed PDK gearbox. On manual transmission GTS cars, torque is 309 lb-ft, which is the same as you find in the S versions of the cars. The PDK is also faster to 60 mph than the manual transmission with a time claimed by Porsche as 3.9 seconds for the PDK and a couple tenths slower in the manual.
GTS versions of these cars get standard equipment you won't find on lesser versions, like the Sport Chrono package with a Sport Plus driving mode and a stopwatch on the dash. Adaptive sport suspension is standard as is a sport exhaust. Sport Seats Plus are standard along with 20-inch black wheels. MSRP for the 718 Boxster GTS starts at $82,950. The Cayman GTS starts at $80,850. That puts starting prices at $12,100 more than the Boxster S and Cayman S models. Porsche recently unveiled a subscription program for cars and SUVs that doesn't include access to these GTS models in the base plan.