The RS Q8 has a twin-turbocharged 4.0-liter V-8 engine that produces 591 horsepower and 590 pound-feet of torque compared with the SQ8’s 500 horses and 568 pound-feet. The RSQ8’s engine pairs with Quattro all-wheel drive and an eight-speed automatic transmission, and there’s also a 48-volt hybrid system working behind-the-scenes to improve fuel efficiency. In November 2019, Audi set a record at the Nürburgring race course with a camouflaged prototype of the RS Q8. When we tested the RS Q8, it blasted to 60 mph in just 3.2 seconds, only 0.1 second behind the far more expensive Urus.