That shouldn't be too much of a surprise given that the car was only ever available in Europe and was said to start from around one million euros ($1.46 million). A build-to-order vehicle, the R8 e-tron never appeared on the company's online configurator.
The rear-wheel drive R8 e-tron featured two motors on the rear axle, which together developed a total of 340kW of power and 920Nm of torque. That's enough to propel the two-door coupe from 0-100km/h in 3.9 seconds.
As a comparison, the rest of the second-generation R8 range uses a 5.2-litre V10 engine. In the base model, the 10-pot engine cranks out 397kW/540Nm for 0-100km/h time of 3.5 seconds, while V10 Plus variant has 449kW/560Nm to its name and completes the 0-100kmh/h dash in 3.2 seconds.
A T-shaped 92kWh lithium-ion battery pack lies under the R8 e-tron's floor and, when fully charged, the R8 e-tron has a claimed driving range of around 450km. Attached to a fast charger the electric supercar can recharged in under two hours.
The R8 e-tron was launched at the 2015 Geneva motor show, and was shown off again a few months later at the CES Asia tech show in Shanghai. This time around, the R8 e-tron also featured the company's autonomous driving technology in addition to an electric drivetrain.
MORE: Audi R8 news and reviews