Audi has a completely new slant on the concept of the five-door coupé for the executive class – the first A7 Sportback in which the brand successfully combined the svelte lines of a classic grand tourer with the reality-ready attributes of Saloon and Avant models is about to give way to its successor.
Rear wheel steering
The top chassis-related innovation on the new car is the dynamic-all-wheel steering. It combines remarkably direct steering response with unshakeable stability, resolving the conflict of aims between agility and comfort. The steering ratio varies as a function of speed between 9.5:1 and 16.5:1 by means of active steering interventions at the front and rear axle. At the front axle, strain wave gearing is used to superimpose these in response to the driver’s steering input. At the rear axle, a spindle drive turns the wheels by as much as five degrees. At low speed, they steer counter to the front wheels to further increase the agility of the big coupe when parking or driving in urban traffic, for example. This reduces the turning circle at full lock by 1.1 metres. At 37 mph and above, the rear axle steers in the same direction to increase straight-line stability and facilitate lane changes.
Broad-based electrification: mild hybrid system for greater comfort and efficiency
All A7 Sportback models will be equipped with a new mild hybrid system (MHEV) for greater comfort and efficiency. With the V-6 engines, this uses a 48-volt primary electrical system. A belt alternator starter (BAS) works together with a lithium-ion battery and achieves a recuperation performance of up to 12 kW when braking. At speeds of between 34 and 99 mph, the large coupé can coast in freewheeling mode with the engine deactivated and then restart comfortably via the BAS.
The start-stop function has been significantly expanded and now activates at 13 mph. In combination with the standard front camera, the engine is restarted predictively while at a standstill as soon as the vehicle ahead begins to move. In real-world driving, the MHEV technology reduces fuel consumption by up to 0.7 litres per 100 kilometres.
The new Audi A7 Sportback will initially launch with the 3.0-litre V-6 TFSI petrol engine. The super-refined V-6 turbo produces 340 PS and 500 Nm (368.8 lb-ft), propelling the elegant five-door coupé from 0 to 62 mph in 5.3 seconds and on to a top speed of 155 mph. In the NEDC, the entry version of the Audi A7 55 TFSI returns up to 41.5 mpg, corresponding to CO2 emissions of 154 grams.
The 3.0-litre TFSI is paired with a seven-speed S tronic twin-clutch transmission, and its output is proficiently managed by the latest iteration of the quattro drivetrain using the efficient ultra technology that activates rear-wheel drive as needed. Additional six- and four-cylinder engines, both petrol and diesel, will follow shortly after the start of production.
The body features steel and aluminium composite construction with large components such as add-on parts made of aluminium and the car is produced at the carmaker’s Neckarsulm site in Germany.