2025 Audi RS Q8 super SUV bows with up to 630 hp

The RS Q8 performance SUV returns to the U.S. for the 2025 model year The twin-turbocharged 4.0-liter V-8 returns as well, tuned to 591 hp or 630 hp in the RS Q8 Performance Audi estimates a 0-62 mph time of 3.6 seconds The Audi Q8 received a mid-cycle update for 2024, but the high-performance RS Q8 variant was notably absent from the lineup. Audi…