Used Audi A8 for sale near Olney

CarGurus expert rating: 4 out of 5
CarGurus user rating: 5.0 out of 5
Percentage of good/great deals available on CarGurus: 31.9%
Overall CarGurus rating:* 4.3 out of 5
Available Listings: Around 90
Average Price: Around £25,000

Audi A8 (2018-present) Pros and Cons

Pros	Cons
Exemplary interior quality	Predictably expensive
Super-spacious long-wheelbase L models	The S8 drinks fuel fast if you make full use of its performance
Relatively discreet and understated	Infotainment not the easiest to use

Quick Summary

The Audi A8 (2018-present) is a technologically advanced and understated luxury saloon that offers a compelling alternative to the Mercedes-Benz S-Class and BMW 7 Series. Available in standard and long-wheelbase L variants, the A8 combines fine looks, exceptional build quality and effortless performance into a well-rounded package. The spacious interior features sumptuous materials throughout, whilst the 505-litre boot accommodates long-haul luggage with ease. All models feature quattro four-wheel drive and adaptive air suspension, delivering a supple ride quality ideal for executive transport.

The engine line-up includes a 3.0-litre V6 petrol (55 TFSI) with 335bhp, a 3.0-litre V6 diesel (50 TDI) with 282bhp, and the plug-in hybrid 60 TFSIe offering an official electric range of over 30 miles. The high-performance S8 features a 563bhp 4.0-litre V8 twin-turbo engine with predictive active suspension and all-wheel steering. All variants use an eight-speed automatic gearbox and benefit from advanced driver aids and safety features as standard, including adaptive cruise control, lane departure warning and automatic emergency braking. The A8 represents excellent value compared to direct rivals, particularly at the upper end of the range.

Best for: Wealthy buyers seeking understated luxury, those prioritising interior quality and comfort, executives requiring chauffeur-driven transport, and buyers wanting a compelling alternative to the Mercedes S-Class.

Not ideal for: Those on a tight budget, drivers seeking the easiest infotainment system, or buyers wanting maximum practicality (luxury SUVs offer more boot space and flexibility).


Comparison vs Key Rivals



The Verdict

You should buy the A8 if: You seek understated luxury, prioritise interior quality and comfort, require executive transport, or want a compelling alternative to the Mercedes-Benz S-Class.

Consider alternatives if: You are on a tight budget, prefer the easiest infotainment system, or require maximum practicality offered by luxury SUVs.

Competitive Position: The Audi A8 (2018-present) is a fine alternative to the Mercedes-Benz S-Class, blending exceptional build quality, effortless performance and understated design into a well-rounded luxury saloon. Whilst the Mercedes edges ahead on overall rating and the BMW 7 Series offers a more intuitive infotainment system, the A8 delivers excellent value compared to direct rivals, particularly at the upper end of the range. Its spacious long-wheelbase L variant, advanced technology and comprehensive safety features make it a compelling choice for wealthy buyers seeking discretion and comfort over ostentation.

Read our full Audi A8 Review

*The Overall CarGurus rating: that informs these recommendations is based on CarGurus' proprietary market data from April 2026, CarGurus expert reviews, and CarGurus user reviews.