Audi Q6 e-tron vs Audi Q8 e-tron

The Audi Q6 e-tron costs £1,175 more than the Audi Q8 e-tron. For that premium it adds 100 miles more WLTP range, 120 kW faster peak rapid charging and 35 kW more power. On EVcarsguide's combined category scores, the Audi Q6 e-tron comes out ahead overall.

The Audi Q8 e-tron is £1,175 cheaper to buy. The Audi Q6 e-tron is cheaper to charge, roughly £176 a year versus £232 for the Audi Q8 e-tron, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Audi Q8 e-tron comes out roughly £895 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 318 miles for the Audi Q6 e-tron and 234 miles for the Audi Q8 e-tron - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Audi Q6 e-tron goes roughly 83 miles further between charging stops. A rapid charge to 80% takes around 22 minutes in the Audi Q6 e-tron and 31 in the Audi Q8 e-tron, so the Audi Q6 e-tron loses less time at each stop. That makes the Audi Q6 e-tron the stronger long-distance car.

The two are within 2 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 463 mm of total clearance for the Audi Q8 e-tron and about 461 mm of total clearance for the Audi Q6 e-tron.

Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Audi Q6 e-tron and 84% for the Audi Q8 e-tron. 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. Both batteries carry a 8-year manufacturer warranty.