2018 Audi S5

3.0 TFSI V6 Cabriolet Tiptronic 4WD Euro 6 (s/s) 2dr (349 bhp)

£19,999

Fair price: within 8% of the typical £20,138 for this model, age and mileage, drawing on 340 adverts of this make and model.

Overview

Make
Audi
Model
S5
Version
3.0 TFSI V6 Cabriolet Tiptronic 4WD Euro 6 (s/s) 2dr (349 bhp)
Mileage
66,125 miles
Year
2018
Fuel type
Petrol
Body type
Convertible
Engine
3.0 L
Gearbox
Automatic
Power
349 bhp
Seats
4
CO2
177 g/km
Colour
Blue
Doors
2
Driven wheels
Four Wheel Drive
Gearbox version
Tiptronic
Engine badge
TFSI V6
Emissions standard
Euro 6

About this car

This 2018 Audi S5 has covered 66,125 miles. Our estimated market asking price is £20,138. This car is advertised at £19,999, which is £139 below that figure. To estimate its market asking price, we analyse UK dealer adverts for 340 Audi S5 cars across different ages and specifications. Since we first spotted the advert 72 days ago, the asking price has dropped by £1,000. The time on sale and price change could be useful context when negotiating. Its MOT is recorded as valid until 27 August 2027. The advertised mileage is consistent with the latest MOT reading. You can find this car at cinch Corby in North Northamptonshire.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price history

First seen on 10 August 2026, 72 days ago. Advert duration calculated on 21 October 2026. Net asking-price reduction: £1,000 from the first recorded £20,999. 5 price reductions recorded, the latest observed on 8 October 2026.

Recorded asking prices
Date observedAsking price
10 August 2026£20,999
11 August 2026£20,999
14 August 2026£21,208
21 August 2026£20,649
11 September 2026£20,699
26 September 2026£20,499
30 September 2026£20,399
3 October 2026£20,299
8 October 2026£19,999
19 October 2026£19,999

Price and mileage comparison

Estimated market asking price: £20,138. The asking price is £139 below this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 340 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 1,000 miles lower than typical for a 2018 Audi S5.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 27 August 2027. 66,124 miles at the last test.

55 other cars with the same year, trim, gearbox and fuel are for sale from £14,990 to £25,990.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£14,990101,358 miles
£15,600104,147 miles
£15,750107,000 miles
£15,800102,000 miles
£16,00060,000 miles

These cars have covered 31,337–107,000 miles, compared with 66,125 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

Browse all Audi S5 cars for sale · 2018 Audi S5 price guide

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Dealer

cinch Corby, North Northamptonshire. Across the dealer network: 134 branches, 10,704 cars for sale.

Dealer postcode: NN18 8AA.

Dealer opening hours

Monday
00:00-24:00
Tuesday
00:00-24:00
Wednesday
00:00-24:00
Thursday
00:00-24:00
Friday
00:00-24:00
Saturday
00:00-24:00
Sunday
00:00-24:00

Vehicle photos