Hottest Cayman gets naturally aspirated flat six derived from 911 Carrera 991
Porsche’s ultimate incarnation of its 718 Cayman model has been revealed with a naturally aspirated version of the flat six found in the current 911 Carrera family. Sharing a technical base with the Boxster-derived 718 Spyder 982 for the first time, the engine in the track-oriented 718 Cayman GT4 982C is derived from the turbocharged flat six found in 991.2 and 992 Carreras, albeit with a capacity increased to four litres and a maximum rev output of 8,000rpm.
Boasting a maximum power output of 420hp, the nat-asp GT4 features gasoline particulate filters, a feature it will share with the incoming 911 GT3 in 992 form. The Cayman's engine underlines the dexterity of Porsche’s 9A2 engine family, though the 992 GT3 will feature a revised GT-oriented 4.0-litre flat six when it is announced at the start of 2020.