As Audi’s flagship SUV, the prestigious and sporty Q8 stands out with racy looks and breathtaking performance. That’s especially true when you look at the new-for-2021 RS Q8, an insane model whose twin-turbocharged 4.0-litre V8 engine unleashes 591 horsepower and 590 pound-feet of torque. Feeling more reasonable? There’s an SQ8 offering 500 horsepower. The standard engine is a 3.0-litre V6 rated at 355 horsepower. All are mated to an eight-speed automatic transmission.