Porsche Cayenne vs Volvo ES90

The Porsche Cayenne costs £15,640 more than the Volvo ES90. For that premium it adds 40 kW faster peak rapid charging, 357 litres more boot space and 80 kW more power. The Volvo ES90 is not just cheaper - it also offers 51 miles more WLTP range and lower energy use, 158 versus 221 Wh/km. On EVcarsguide's combined category scores, the Porsche Cayenne comes out ahead overall.

The Volvo ES90 is £15,640 cheaper to buy. The Volvo ES90 is cheaper to charge, roughly £176 a year versus £240 for the Porsche Cayenne, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Volvo ES90 comes out roughly £15,960 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.

EVcarsguide estimates a real-world motorway range of about 234 miles for the Porsche Cayenne and 286 miles for the Volvo ES90 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Volvo ES90 goes roughly 52 miles further between charging stops.

The Volvo ES90 is the easier car for tight UK car parks: it is 38 mm narrower than the Porsche Cayenne. In a standard 2,400 mm bay that leaves about 458 mm of total clearance for the Volvo ES90 and about 420 mm of total clearance for the Porsche Cayenne. The Volvo ES90 also turns in a 0.7 m tighter circle, which helps with U-turns and multi-storey ramps.

Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Porsche Cayenne and 84% for the Volvo ES90. That is close enough that capacity loss should not decide between them. Both use NMC-type cells, so for daily use keep the charge limit near 80% to slow degradation.