2016 Aston Martin DB9 5.9L Petrol · 11 HC

Fuel economy for the DB9 realistically sits in the high teens to low twenties mpg in mixed driving, dropping further during spirited use — budget accordingly and accept that this is a car for special journeys rather than daily commuting. Road tax is substantial due to the 5935cc engine, so confirm the current rate before purchase. Insurance will be considerable given the car's value and performance; specialist insurers often provide more competitive quotes than mainstream providers.

Servicing and maintenance are the headline costs. Aston Martin main dealer and recognised specialist labour rates are high, and parts — particularly for the V12 powertrain — can be eye-wateringly expensive. Even routine items such as brake discs and pads are costly compared with mainstream machinery. A full major service on a DB9 can easily run into four-figure territory, and clutch replacement is a five-figure job if ever required.

Estimated annual running costs for this vehicle are likely in the region of £3,000-£5,000, covering fuel, road tax, insurance, and assuming one minor service plus consumables. Owners who drive less and undertake work at independent specialists may reduce this, while those covering higher mileages should budget towards the upper end or beyond.

Begin with a thorough inspection of the tyres — this specific car recorded inner-edge wear on the nearside front in 2022. Check all four corners for uneven wear patterns, as this can indicate alignment, suspension, or geometry issues. Examine the wheels for kerbing damage, which is common on low-slung grand tourers and can be costly to refurbish.

Move on to the V12 engine bay. Look for signs of oil leaks around the sump, cam covers, and the area beneath the intake manifold, which is a known DB9 weak point and labour-intensive to access. Inspect the coolant expansion tank and the condition of hoses, as plastic components of this age can become brittle. Although this car's MOT history shows no failures, the model aggregate data flags brake pad and headlamp issues, so check pad wear and the operation of all exterior lighting, including the adaptive units where fitted.

Finally, run the car through all its electrical functions — the 2024 MOT recorded an amber TPMS warning, and while this resolved at the next test, it suggests tyre pressure sensors of this age can be fragile. Check the operation of the sat-nav, climate control, and any convertible roof mechanism if applicable. Listen for any untoward noises from the transmission during a test drive and confirm smooth changes through all gears.