Used Audi RS5 Buying Guide
The Audi RS5 is the sleek two-door (and later four-door) answer to the RS4, wrapping the same performance hardware in a more style-led body. Used examples split neatly into two camps: the earlier cars with a screaming naturally aspirated V8, and the later twin-turbo V6 models that trade noise for effortless real-world speed. Both make compelling used buys, but they suit quite different owners, and the checks you need to make differ too.
Engines and trims
The B8 generation (2010–2015) came as a Coupé and, later, a Cabriolet, powered by a 4.2-litre V8 that revs beyond 8,000rpm and drives through a seven-speed S tronic dual-clutch gearbox. It’s the choice for buyers who value drama and soundtrack above outright pace. The B9 generation (2017 onwards) switched to a 2.9-litre twin-turbocharged V6 with an eight-speed automatic; a five-door Sportback body joined the Coupé for 2019, adding real practicality without diluting the looks.
Across both generations quattro all-wheel drive is standard, as are RS-tuned suspension and upgraded brakes. On B9 cars, look for the Dynamic Ride Control adaptive dampers where fitted, the sport differential, and the Comfort and Sound or Technology packs. Carbon exterior packs and Vorsprung editions carry the most equipment. The optional sports exhaust is worth seeking on either car, and carbon-ceramic front brakes crop up on hard-driven examples — a bonus if healthy, a large bill if not.
What to check before buying
B8 buyers should focus on two things. First, the direct-injection V8 is known to accumulate carbon on its intake valves over time, which dulls throttle response and idle quality; a documented intake clean is reassuring on higher-mileage cars. Second, the S tronic gearbox must have had its regular fluid changes — feel for slurred, harsh or hesitant shifts when cold and at parking speeds, because mechatronic and clutch repairs are costly.
The B9 drivetrain has a solid record so far, but inspect any car of this performance the same way: complete service history, no undisclosed remaps, matching premium tyres with even wear, and brakes with plenty of life left. Where DRC is fitted, confirm the ride is controlled and level with no knocking over broken surfaces. On Cabriolets, run the roof through several full cycles and check the drains; on Sportbacks, test the powered tailgate. As ever, scrutinise bodywork for accident repairs — these are fast cars, and not every previous owner will have been careful.
Running costs
Expect the V8 to be the thirstier of the two by some margin, especially in town, while the V6 can return respectable economy on a gentle motorway cruise. Insurance sits near the top of the groups for both, and road tax on the earlier high-emissions cars is at the steep end of the scale. Servicing costs more than a standard A5 by a comfortable margin, and consumables are performance-car priced, though a good independent Audi specialist keeps ownership sensible. Budget a maintenance reserve rather than assuming a well-priced car will stay cheap.
Verdict
The RS5 is the discreet way to own serious Audi performance: as fast as its estate siblings, more individual to look at, and usable every day. Choose the B8 for character and that V8 howl, the B9 — ideally a Sportback — for speed, refinement and practicality. Whichever way you lean, history and honest condition should decide the car, not the spec sheet.
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