Q8 e-tron highway range and real-world range

At a steady 120 km/h, we estimate the Audi Q8 e-tron Q8 e-tron (20-inch wheels) covers about 381 km on a full charge, versus 438 km rated.

Rated (NRCan)Highway at 120 km/h (estimate)Winter at 0°C (estimate)Winter at −20°C (estimate)

Q8 e-tron highway range at 120 km/h

Unusually, NRCan's tests show the Q8 e-tron (20-inch wheels) using 4% less energy on the highway than in the city, so highway range is close to or above the combined rating. NRCan's highway cycle averages well under 100 km/h, so we take its highway figure and reduce it by 15% for 120 km/h. The Q8 e-tron ranks #37 of 62 on this estimate.

Q8 e-tron real-world range

Real-world range depends on speed, temperature, wheels and load. Mixed driving in mild weather usually lands near the rated 438 km. Sustained highway speeds pull it toward the 381 km estimate, and a cold highway trip can drop it further; see the Q8 e-tron winter range. For trip planning, most drivers use between 10% and 80% (charging stops) or 100% (leaving home) of the battery, which is about 282 to 363 km of highway driving.

Rated range: Natural Resources Canada Fuel Consumption Ratings, battery-electric vehicles 2012-2026 (updated March 9, 2026), 2025 model year unless noted. Estimates explained in how we estimate.