The new pictures show what appears to be a heavily redesigned interior, which will most likely feature Audi's new all-digital dash, and have also highlighted details like small LED running lights in the car's headlights.
Previously, development of the second-generation Audi R8 was being undertaken at the Nürburgring ahead of the car's launch in 2015.
The new supercar, the sister model to the new Lamborghini Huracán, had been photographed performance testing at the famous circuit.
It wore less heavy camouflage than previous models, displaying the new car's shape more clearly. While the new R8 keeps the same basic dimensions as its predecessor, visual upgrades include new front air intakes and a smaller front grille can also be seen, as well as new headlight clusters.
At the rear, the profile of the new R8 appears wider than the current car and sports new exhausts plus a large rear diffuser.
While Audi bosses have confirmed the new R8 will follow the "same general layout" as the Huracán, the Audi car includes wider tracks and a longer wheelbase.
Technology carried over from the Huracán includes that car's innovative rear firewall, as well as its central tunnel made from a single carbon fibre moulding, which weighs as little as 50kg.
Following the precedent set by the first R8, the majority of the new car's components will be made from aluminium to save weight. The same structure will also be used for the upcoming R8 e-tron.
Audi's existing V8 and V10 engines will power the new R8, with the latter unit closely related to the 5.2-litre engine found in the Huracán. That engine puts out 602bhp in the Huracán, giving the new Lamborghini a 0-62mph time of 3.2 seconds and a top speed of over 200mph.