2018 Peugeot 308 1.5 BlueHDi GT Line
Price: £4,495. Good value: £787 (14%) under the AskCar estimate of £5,282, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,061 priced Peugeot 308 adverts on AskCar as of 2 November 2026.
AskCar lists 1,099 used Peugeot 308 from 766 UK dealerships, as of 2 November 2026.
Overview
- Make: Peugeot
- Model: 308
- Trim: GT Line
- Version: 1.5 BlueHDi GT Line Manual FWD Euro 6 (s/s) 5dr (129 bhp)
- Year: 2018
- Mileage: 104,000 miles
- Fuel: Diesel
- Body: Hatchback, 5 doors, 5 seats
- Engine: 1.5 litres, 129 bhp
- Gearbox: Manual
- Drive: Front-wheel drive
- Colour: Red
- CO2: 96 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2018 Peugeot 308 GT Line has covered 104,000 miles, around 39,000 more miles than is typical for its age. Its asking price of £4,495 is £787 below the AskCar estimate of £5,282. The AskCar estimate uses 1,061 UK dealer adverts for the Peugeot 308, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 33 days ago. The government's MOT record matches its advertised mileage. You can find this car at MB Car Sales in Sheffield. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Good value: £787 (14%) under the AskCar estimate of £5,282.
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 1,061 priced Peugeot 308 adverts across different ages and specifications, as of 2 November 2026.
A 2018 Peugeot 308 with the 1.5 diesel engine is typically advertised at £7,500: the median of the 25 for sale on AskCar, as of 2 November 2026.
Time on sale
This 2018 Peugeot 308 has been on sale for at least 33 days.
Price history
AskCar first saw this advert on 30 September 2026 at £4,495. Its asking price has not changed.
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 29 December 2026.
It has had 6 MOTs. The latest, on 30 December 2025, passed.
There were no advisories at the latest test.
Mileage at that test: 100,309 miles, which matches the advertised 104,000 miles.
Advertised mileage is about 39,000 miles higher than the median mileage of a 2018 Peugeot 308 on AskCar.
Similar cars
17 other 2018 Peugeot 308 GT Line 1.5 diesel manual hatchbacks are for sale at UK dealers, from £5,725 to £8,695, as of 2 November 2026.
The 3 closest to this car in mileage:
- 2018 Peugeot 308 GT Line, 1.5 diesel hatchback, red. Mileage: 91,457 miles. Price: £5,995, £1,500 more than this car. Dealer: Drive: Your Way in Brighouse. AskCar page: https://askcar.co.uk/car/peugeot-308-2018-6f1d81082e8c
- 2018 Peugeot 308 GT Line, 1.5 diesel hatchback, black. Mileage: 75,273 miles. Price: £6,995, £2,500 more than this car. Dealer: Grand Garage in Margate. AskCar page: https://askcar.co.uk/car/peugeot-308-2018-71d666c018ac
- 2018 Peugeot 308 GT Line, 1.5 diesel hatchback, red. Mileage: 73,466 miles. Price: £6,999, £2,504 more than this car. Dealer: Pegasus Cars Sale in Stourbridge. AskCar page: https://askcar.co.uk/car/peugeot-308-2018-877c99588961
Browse all Peugeot 308 cars for sale · 2018 Peugeot 308 price guide
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- Used Peugeot 308 GT Line prices
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- Used diesel Peugeot 308 for sale
Photos
47 photos of this car are on its AskCar page.
As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.