The next-generation Porsche Cayman and Boxster are set to adopt a bespoke electric sports car platform designed to mimic the current combustion cars’ mid-engined characters and which could go on to underpin future Audi and Lamborghini models.
Using a novel battery arrangement referred to as the ‘e-core’ layout, Porsche’s entry-level sports EVs will offer as low a seating position and centre of gravity as possible, in line with their dynamic billing.
The Stuttgart firm recently revealed the Mission R concept, which officially previews a potential one-make racer and also strongly hints at styling details and dimensions of the as-yet-unannounced electric Cayman and Boxster.
Porsche has admitted that the Mission R reflects work being done in parallel in the firm’s design studio on future EVs, hinting that certain styling elements will in due course be seen on production models. The car is also close in dimensions to the current 718 Cayman and Boxster.
Porsche used a reworked version of the 718 Cayman chassis to make the Mission R concept, but when asked about a possible production version, company boss Oliver Blume said: “When we electrify a model, we won’t do a carry-over of the combustion engine [platform] because there are too many compromises. “When we are looking to future sports cars, we would develop its own platform but connected with some modules coming from other cars. But the platform will be unique.”
The Mission R is designed to mimic a mid-engined sports car design by placing the batteries – the heaviest element of the vehicle – behind the driver but ahead of the rear axle where the engine would usually lie.
Porsche technical chief Michael Steiner said the decision to adopt the unusual layout had been driven by a need to make the car as low as possible in order to reduce drag, but that approach prohibits the traditional EV ’skateboard’ chassis with underfloor batteries. That design is featured on Porsche and Audi’s shared J1 architecture, used by the existing Taycan, and the forthcoming PPE platforms.