2015 Mercedes-Benz SLK 2.1 SLK250d AMG Sport in Christchurch

What this car costs to run

Modelled over 7,100 miles a year (DfT National Travel Survey, England). Ranges, not quotes — a figure marked exact is set by law for this car; everything else is an estimate.

Vehicle tax (VED)exactCO2-banded (114 g/km, as the dealer states in the advert, registered 2001–2017)

£35

FuelAbout 42 mpg — the middle real-world figure for the 4 similar-sized diesel engines in Autoza's economy data, not this car's own figure — at 199.2p a litre

£1,300–£1,800

Insurance (UK average)The UK average premium actually paid for comprehensive cover, £566 in Q2 2026 (ABI) — an average across every driver, postcode and car, not a quote for this one. Yours turns on your age, postcode and record and on the car’s insurance group. A 17–20-year-old new driver typically pays more than this average: see our guide to the cheapest cars to insure as a new driver, or the ABI figures

£566

ServicingFrom a minor service (£300–£500) to a major one (£600–£1,100) on a Mercedes, from Autoza's own servicing estimates by make, not survey data. Routine servicing only — excludes repairs and tyres

£300–£1,100

MOT test£54.85 maximum in Great Britain — the DVSA cap, and many garages charge less — with the first test on the third anniversary of registration. DVSA: 27.51% of car and light-van MOTs in Great Britain failed their initial test in 2025/26, and repairs are extra

up to £54.85

Estimated total a yearThe rows above added up, low ends and high ends

£2,250–£3,600

Work out the vehicle tax with our car tax calculator (it opens with this car's year, fuel and CO2 filled in), or put in your own mileage and prices with the running cost calculator.