Used Audi A8 for sale near Olney

CarGurus expert rating: 4 out of 5
CarGurus user rating: 4.6 out of 5
Percentage of good/great deals available on CarGurus: 30.6%
Overall CarGurus rating:* 4.2 out of 5
Available Listings: Around 85
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 considered, 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 delivers exemplary interior quality, spacious accommodation, and effortless performance. The range includes a 3.0-litre V6 petrol (55 TFSI), a 3.0-litre V6 diesel (50 TDI), a plug-in hybrid (60 TFSIe), and the high-performance S8 with a 563bhp V8 twin-turbo engine. All models feature quattro four-wheel drive and adaptive air suspension for a supple ride quality.

The A8 excels with its impeccable build quality, advanced driver aids, and sophisticated technology, including digital matrix LED headlights and OLED rear lights on newer models. The plug-in hybrid offers excellent tax benefits and low running costs for city driving, whilst the diesel provides strong real-world economy around 40mpg. The S8 delivers thrilling performance but at considerable fuel cost. As a used purchase, the A8 represents good value compared to rivals, particularly at the upper end of the range, appealing to discerning buyers who value refinement, comfort, and understated elegance over ostentatious display.

Best for: Executives and wealthy buyers seeking a refined, spacious, and technologically advanced luxury saloon; those valuing understated elegance and exceptional build quality; business users considering the plug-in hybrid for tax efficiency.

Not ideal for: Budget-conscious buyers; those prioritising the easiest infotainment systems; drivers seeking maximum practicality (saloon boot limitations compared to SUV rivals).


Comparison vs Key Rivals



The Verdict

You should buy the A8 if: You're seeking a refined, spacious, and technologically advanced luxury saloon; you value understated elegance and exceptional build quality; or you're a business user considering the plug-in hybrid for tax efficiency.

Consider alternatives if: You prioritise the easiest infotainment systems, require maximum practicality, or are budget-conscious about running costs.

Competitive Position: The Audi A8 (2018-present) is a compelling choice in the luxury saloon market, offering excellent value compared to the Mercedes-Benz S-Class and BMW 7 Series. Its exemplary interior quality, spacious long-wheelbase options, and understated design appeal to discerning buyers who value refinement over ostentation. Whilst the Porsche Panamera offers sportier dynamics and the Mercedes S-Class provides marginally better ride quality, the A8's combination of technology, comfort, and build quality makes it a highly attractive proposition. The plug-in hybrid variant is particularly appealing for business users seeking tax efficiency and lower running costs, whilst the S8 delivers thrilling performance for those who desire it.

Read our full Audi A8 Review

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