Common denominator in both variants is the DMV 4.0 TFSI bi-turbo, which is responsible for the maximum output of 605 PS and 700 Nm of torque that on overboost, arrives at 750 Nm.
Despite a noticeable increase in power, the revamped V8 Cylinder technology features an On Demand that improves efficiency by selectively disabling 4 of the 8 cylinders and has a Start/Stop system allowing more distance overall, in the case of the RS 7 Sportback performance, is unchanged from the RS7 Sportback.
Both variants are equipped with Tiptronic gearbox 8 matched, as with all sports reports with the four rings, and the Quattro permanent all-wheel drive. The RS 7 Sportback performance goes from 0 to 100 km/h in 3.7 seconds; the S8 Plus employs only one-tenth of a second. At the request of the customer, both RS7 and S8 + can reach a maximum speed of 305 km/h, electronically limited.
The RS 7 Sportback performance is characterized by its bumper which has larger air intakes in the front and rear diffuser. The single frame has a honeycomb with frame and mat titanium-colored, while the written four shells of side mirrors and mouldings to windows are in Matt titanium look.
It is fitted with the standard double 5-spoke alloy wheels in Matt titanium look, from 21 inches and the metallic or Pearly. The Audi S8 Plus is designed with the single frame gloss black double hexagonal strips, while a honeycomb of air intakes and radiator grille are in matte black with piping in carbon air intakes.
The shells of rear-view mirrors are the same color as the bodywork and the mouldings to the side windows are in glossy black. Among other distinctive design features of S8 Plus include tinted rearlights and the insert diffuser in glossy black, with an additional carbon moulding.
Deliveries of both the RS7 and S8+ will begin in first-quarter of 2016. The first shipment of the Audi S8 Plus will be available from early March, while the RS 7 Sportback will arrive just at the end of March.