Audi S6 Sportback e-tron vs Porsche Taycan (2020-2024)

The Audi S6 Sportback e-tron costs £9,758 more than the Porsche Taycan. For that premium it adds 158 miles more WLTP range, 45 kW faster peak rapid charging and 95 litres more boot space. On EVcarsguide's combined category scores, the Audi S6 Sportback e-tron comes out ahead overall.

The Porsche Taycan is £9,758 cheaper to buy. The Audi S6 Sportback e-tron is cheaper to charge, roughly £168 a year versus £216 for the Porsche Taycan, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Porsche Taycan comes out roughly £9,518 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 342 miles for the Audi S6 Sportback e-tron and 211 miles for the Porsche Taycan - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Audi S6 Sportback e-tron goes roughly 132 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 18-21 minutes.

The Audi S6 Sportback e-tron is the easier car for tight UK car parks: it is 43 mm narrower than the Porsche Taycan. In a standard 2,400 mm bay that leaves about 477 mm of total clearance for the Audi S6 Sportback e-tron and about 434 mm of total clearance for the Porsche Taycan. The Porsche Taycan also turns in a 0.6 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 Audi S6 Sportback e-tron and 84% for the Porsche Taycan. 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.