2022 Porsche Boxster and Cayman to get hybrid and EV options

Speaking about Porsche’s plan for the second-generation Macan, Blume said: “For at least two to three years we will have both. At that point, we can decide whether to upgrade the combustion engines to the new Euro 7 standard or go full electric. The pace that countries are changing is different – China wants electric now, Russia is in less of a hurry, for instance.” 

The new mild-hybrid and plug-in hybrid drivetrains intended for the 718 models are developments of those already engineered for the larger Porsche 911, according to sources. The electrification measures are among changes designed to allow Porsche’s existing combustion engines to meet the upcoming EU7 emissions standards.

However, while the hybrid systems scheduled to appear on the facelifted version of the eighth-generation 911 early next decade are based around Porsche’s horizontally opposed six-cylinder petrol engine, those being earmarked for the new 718 Boxster and Cayman are set to use the smaller-capacity flat four engine introduced by Porsche in 2016. 

Both units feature a 48V electrical system and disc-shaped electric motor integrated into a modified version of the existing Boxster and Cayman’s seven-speed dual-clutch automatic gearbox. 

The mild-hybrid system has been conceived to provide an electric boost to the petrol engine for added performance potential and increased efficiency, albeit without the ability to provide an electric-only driving mode. The plug-in hybrid also provides electric boosting but has been built around a battery of sufficient capacity to offer extended pure-electric running. 

Porsche’s plan to give the 718 Boxster and its fixed-roof Cayman sibling electric power originated from the 2011 Boxster E project. That machine featured a 121bhp electric motor with a range of 106 miles, although EV technology has moved on substantially since then. 

More recently in 2017, Porsche developed the one-off Cayman e-volution. It had a claimed 0-62mph acceleration time of 3.3sec, a 120mph top speed and a range of 120 miles on a 38kWh lithium ion battery. 

Despite the impressive performance credentials of the Cayman e-volution, concerns about its limited range led Porsche to pursue the development of solid-state batteries – both for future pure-electric versions of the 718 Boxster and Cayman as well as for an electric hypercar that is expected to appear in 2025 as a spiritual successor to the 918 Spyder. 

Porsche insiders citing studies carried out by parent company Volkswagen say they anticipate a rapid evolution of lithium ion cells for an improved energy-to-weight ratio in the next generation of batteries. Estimates are that cell energy density both by volume and weight will increase by 25% from 2019 to 2025.