[audifan]

This e-tron traveled 188.4 miles (303 km) driving at a constant speed of 70 mph.

Audi e-tron 70 MPH Highway Range Test

We fully charge a 2019 Audi e-tron and take it out on the highway where we drive it at a constant 70 mph until the battery is fully depleted.

insideevs.com

 

[omegafiler]

Those 21" wheels definitely take a toll on efficiency (and range). But they look great. Worth it.

Great video though.

 

[polyphonic]

Is there a chart of efficiency with different wheel/tire combos for e-tron?
Generally speaking, smaller wheels and narrower tires fare better.

 

[omegafiler]

Is there a chart of efficiency with different wheel/tire combos for e-tron?
Generally speaking, smaller wheels and narrower tires fare better.

I'm not sure if Audi has an official chart, but it's been reported on before. Here is a recent post by etronukowner with some specs (UK).

My etron full black

The wheels will arrive in 1 week

www.e-tronforum.com