Nov 5, 2024 · The most powerful Audi, the RS Q8 performance with V8 engine is put to the test in the city of Sitges, Spain. Written by: Oscar Sanz 5 November 2024 3 min. Audi's most powerful SUV shows its true power on the Castellolí Circuit, reaching 305 km/h and accelerating from 0 to 100 km/h in just 3,6 seconds. Industry.