Porsche Cayenne vs Porsche Taycan Sport Turismo

The Porsche Taycan Sport Turismo costs £6,000 more than the Porsche Cayenne. On the headline specs that premium buys little measurable advantage - the two are closely matched on range, charging and space. The Porsche Cayenne is not just cheaper - it also offers 120 kW faster peak rapid charging, 335 litres more boot space and 1 more seat (5 versus 4). On EVcarsguide's combined category scores, the Porsche Cayenne comes out ahead overall.

The Porsche Cayenne is £6,000 cheaper to buy. The Porsche Taycan Sport Turismo 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 Porsche Cayenne comes out roughly £5,680 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 293 miles for the Porsche Taycan Sport Turismo - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Porsche Taycan Sport Turismo goes roughly 58 miles further between charging stops.

The two are within 14 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 434 mm of total clearance for the Porsche Taycan Sport Turismo and about 420 mm of total clearance for the Porsche Cayenne. The Porsche Taycan Sport Turismo also turns in a 1.0 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 Porsche Taycan Sport Turismo. 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.