2018 Audi RS6 Avant

The C7 RS6 Avant is one of the more convincing sleepers money can buy: 552 bhp from a 4.0-litre twin-turbo V8, quattro all-wheel drive, and five-door estate practicality wrapped in a silhouette that rarely provokes a second glance outside of enthusiast circles. This 2018 example represents the C7.5 facelift — the final evolution of the generation — with 45,307 miles covered, a reasonable accumulation for a car now approaching its mid-life as a used proposition.

Finished in blue and fitted with an electric tilt-and-slide sunroof, the specification is tidy if not heavily optioned. The 4.0 TFSI V8 produces 700 lbs/ft of torque, dispatched through the Tiptronic eight-speed automatic and all four wheels — the 0–60 time of 3.8 seconds and a 155 mph top speed are the expected results. It is a car that conceals its capability almost entirely until provoked, which remains central to the RS6 Avant's enduring appeal.

At £46,990, this sits where solid late C7 examples with sensible mileage typically trade. The twin-turbo V8 is well-proven across the generation and mileage at this level is well within normal parameters for a car used as an RS6 Avant tends to be. Worth confirming the full service history and understanding the specification in detail before committing.