Enlarge / Polestar is developing a four-door electric GT called the Polestar 5, which goes on sale in 2024. (credit: Polestar)

NUNEATON, ENGLAND—Any day is a good day that involves a visit to a proving ground, even if that includes a two-hour drive fresh from a transatlantic flight. And this was a good day: a visit to Polestar’s UK research and development center, based at the Motor Industry Research Association’s proving grounds outside Coventry, England, to find out how it’s getting on with one of its next electric vehicles, a purposeful-looking performance sedan called the Polestar 5.

Until now, the Polestar EVs we’ve seen have used platforms shared across other brands within the Geely group. The Polestar 2 fastback sedan uses the same CMA platform as the Volvo XC40, and next year’s Polestar 3 SUV—which will be built in South Carolina—uses the group’s SPA2 platform.

Pete Allen, head of Polestar UK R&D (blue shirt) stands behind a Polestar 5 prototype and talks to some assembled journalists. (credit: Polestar)

That involves some compromises, though; those platforms were designed to be built in high volumes, with attributes like ride comfort prioritized over handling prowess. That’s fine for, say, a luxury SUV—even a sporty one. But if you were a brand wanting to build a competitor for the Porsche Taycan, you might want to start from scratch.