2020 Peugeot 308 1.2 PureTech GT Line

Price: £10,990. Fair price: £248 (2%) over the AskCar estimate of £10,742, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,086 priced Peugeot 308 adverts on AskCar as of 6 November 2026.

AskCar lists 1,131 used Peugeot 308 from 793 UK dealerships, as of 6 November 2026.

Overview

  • Make: Peugeot
  • Model: 308
  • Trim: GT Line
  • Version: 1.2 PureTech GPF GT Line Auto FWD Euro 6 (s/s) 5dr EAT (129 bhp)
  • Year: 2020
  • Mileage: 36,000 miles
  • Fuel: Petrol
  • Body: Hatchback, 5 doors, 5 seats
  • Engine: 1.2 litres, 129 bhp
  • Gearbox: Automatic
  • Drive: Front-wheel drive
  • Colour: Blue
  • CO2: 124 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Peugeot 308 GT Line is advertised with 36,000 miles on the clock. The dealer is asking £10,990, which is £248 above the AskCar estimate of £10,742. To work out the AskCar estimate, we analyse UK dealer adverts for 1,086 Peugeot 308 cars across different ages and specifications. The asking price is now £1,300 lower than when we first recorded the advert 162 days ago. Ask the dealer why the advert shows fewer miles than the 36,855 recorded at the latest MOT. Its MOT is recorded as valid until 22 May 2027. You can find this car at Aylas Cars in Staines-Upon-Thames. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £248 (2%) over the AskCar estimate of £10,742.

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

It draws on 1,086 priced Peugeot 308 adverts across different ages and specifications, as of 6 November 2026.

A 2020 Peugeot 308 with the 1.2 petrol engine is typically advertised at £8,600: the median of the 38 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2020 Peugeot 308 has been on sale for at least 162 days.

Price history

AskCar first saw this advert on 28 May 2026 at £12,290. Its asking price is now £10,990, £1,300 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

  • 28 May 2026: £12,290
  • 6 August 2026: £11,990
  • 11 September 2026: £11,790
  • 1 November 2026: £10,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 22 May 2027.

It has had 4 MOTs. The latest, on 23 May 2026, passed.

Advisories at the latest test: under tray fitted.

Mileage at that test: 36,855 miles. The advert says 36,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 7,800 miles lower than the median mileage of a 2020 Peugeot 308 on AskCar.

Similar cars

3 other 2020 Peugeot 308 GT Line 1.2 petrol automatic hatchbacks are for sale at UK dealers, from £7,250 to £10,950, as of 6 November 2026.

The 3 closest to this car in mileage:

  • 2020 Peugeot 308 GT Line, 1.2 petrol hatchback, blue. Mileage: 36,385 miles. Price: £10,790, £200 less than this car. Dealer: One Stop Car Sales in Willesden. AskCar page: https://askcar.co.uk/car/peugeot-308-2020-4a248abf235f
  • 2020 Peugeot 308 GT Line, 1.2 petrol hatchback, blue. Mileage: 26,850 miles. Price: £10,950, the same price as this car. Dealer: CARZ4LESS in Sittingbourne. AskCar page: https://askcar.co.uk/car/peugeot-308-2020-c79cee83aa71
  • 2020 Peugeot 308 GT Line, 1.2 petrol hatchback, black. Mileage: 88,000 miles. Price: £7,250, £3,740 less than this car. Dealer: Car City (Luton) in Luton. AskCar page: https://askcar.co.uk/car/peugeot-308-2020-60a0336d7b9a

Browse all Peugeot 308 cars for sale · 2020 Peugeot 308 price guide

More like this

Photos

58 photos of this car are on its AskCar page.

As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.