First deliveries of the car, an SUV format vehicle built in Brussels, are scheduled for early 2019.
Standard output will be 355hp, with a short term boost available to 402hp. Performance figures suggested by the company is 0-100km/h in around six seconds and a range of about 430km.
The car uses a sophisticated regeneration system which is claimed to provide up to 30pc of the range.
The e-tron is targeting rival vehicles from Tesla and Jaguar.
Audi plans to have an electrified variant of every model by 2025, most of them pure electric.
