Engine Displacement: 3,996 cc
The RS Q8 Performance is powered by a 4.0-litre bi-turbo V8 engine. This flagship "Performance" variant has been re-engineered with a reduced exhaust backpressure system and optimized engine software. It also features a 48V Mild-Hybrid system that allows for refined start-stop functionality and energy recuperation, though the focus here is squarely on high-output performance and the signature deep V8 rumble of the standard RS Sport Exhaust system.
Max Power: 631 bhp (471 kW)
In this "Performance" trim, the power output is increased to 631 bhp (640 PS), a significant jump over the 591 bhp found in the standard RS Q8. This makes it the most powerful series-produced combustion engine in Audi Sport's history, providing a level of thrust usually reserved for mid-engine supercars.
Max Torque: 850 Nm @ 2,300–4,500 rpm
The V8 generates a massive 850 Nm of torque. This torque is delivered through a self-locking center differential that can send up to 85% of power to the rear wheels, working in tandem with the Quattro sport differential to eliminate understeer during aggressive cornering.
0-100 km/h: 3.6 Seconds
The RS Q8 Performance rockets from 0 to 100 km/h in just 3.6 seconds. For the 2026 model, the top speed is electronically limited to 250 km/h but can be optionally increased to 305 km/h, officially making it one of the fastest SUVs in the world.
