2018 Vauxhall Insignia 1.5 i Turbo SRI NAV

Overview

• Make: Vauxhall
• Model: Insignia
• Trim: SRI NAV
• Version: 1.5 i Turbo SRI NAV Manual FWD Euro 6 (s/s) 5dr Grand Sport (163 bhp)
• Year: 2018
• Mileage: 124,044 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 163 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 136 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 124,044 miles on the clock, this 2018 Vauxhall Insignia Sri Nav has done roughly 52,800 more miles than a typical 2018 Vauxhall Insignia. The dealer is asking £4,002, which is £405 below the AskCar estimate of £4,407. To work out the AskCar estimate, we analyse UK dealer adverts for 1,022 Vauxhall Insignia cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 95 days, and its asking price is down £342. The government's MOT record matches its advertised mileage. You can find this car at Horsepower Motor Centre in Tonbridge. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Good value: £405 (9%) under the AskCar estimate of £4,407.

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 1,022 priced Vauxhall Insignia adverts across different ages and specifications, as of 5 November 2026.

A 2018 Vauxhall Insignia with the 1.5 petrol engine is typically advertised at £8,300: the median of the 51 for sale on AskCar, as of 5 November 2026.

Time on sale

The dealer may accept less. This 2018 Vauxhall Insignia has been on sale for at least 95 days, and its asking price has been cut by £342. About 6 in 10 of 2018 Vauxhall Insignia cars are gone from sale within a month of being advertised: 136 of the 244 first advertised between 11 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 2 August 2026 at £4,344. Its asking price is now £4,002, £342 less. The latest price cut was seen on 26 October 2026.

Price changes recorded:

• 2 August 2026: £4,344
• 8 August 2026: £4,280
• 30 August 2026: £4,220
• 2 September 2026: £4,219
• 14 September 2026: £4,210
• 26 October 2026: £3,999
• 4 November 2026: £4,002

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 23 August 2027.

It has had 7 MOTs. The latest, on 11 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 123,783 miles, which matches the advertised 124,044 miles.

Advertised mileage is about 52,800 miles higher than the median mileage of a 2018 Vauxhall Insignia on AskCar.

Similar cars

7 other 2018 Vauxhall Insignia SRI NAV 1.5 petrol manual hatchbacks are for sale at UK dealers, from £6,749 to £7,998, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2018 Vauxhall Insignia SRI NAV, 1.5 petrol hatchback, blue. Mileage: 73,600 miles. Price: £6,820, £2,818 more than this car. Dealer: Evans Halshaw Ford East Kilbride in East Kilbride. AskCar page: https://askcar.co.uk/car/vauxhall-insignia-2018-c25dc9bfd205
• 2018 Vauxhall Insignia SRI NAV, 1.5 petrol hatchback, silver. Mileage: 70,869 miles. Price: £7,295, £3,293 more than this car. Dealer: Kirby Vehicle Sales in Barnsley. AskCar page: https://askcar.co.uk/car/vauxhall-insignia-2018-460ef8f62788
• 2018 Vauxhall Insignia SRI NAV, 1.5 petrol hatchback, grey. Mileage: 67,900 miles. Price: £6,749, £2,747 more than this car. Dealer: Westside Autos in West Drayton. AskCar page: https://askcar.co.uk/car/vauxhall-insignia-2018-48cfefd604ec