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Audi’s most potent V8 is hidden within a practical mild-hybrid SUV, offering supercar performance and Urus-level dynamics for $200,000 less than its exotic Lamborghini cousin. Skip ahead: Introduction Running costs Price and specification Energy use Interior space and comfort On-road assessment Connectivity and infotainment Summary Safety Next steps 2026 Audi RS Q8 Performance The most powerful Audi engine ever is not under the sleek bonnet of a saloon or sports car, but rather sunk into an SUV. Audi is the oft-hailed king of the ‘Q Car’, those ‘sleepers’ designed to mimic their more sedate siblings at first glance, but the subtle hints of its performance prowess are there as you draw nearer. Or not so subtle. Like the monster under the bed that has its feet poking out, nothing can hide those 23-inch forged rims, massive 10-piston calipers, and rotors that measure almost half a metre in diameter. Flick the RS switch and h...