When you take into account the space, performance, high level of standard equipment such as leather seats and Bluetooth, and the overall refinement, the 5 Series is represents excellent value for money at the pumps. All the engines offer good fuel economy considering their relative power outputs, but special mention has to go to the excellent 520d which averages 57mpg – running this luxury, executive car could cost no more than running a Dacia Sandero, per mile at least.

The 520d Efficient Dynamics is also the cleanest model (even including the Active Hybrid), thanks in part to an early implementation of start/stop that cuts the engine in traffic. Rated for just 132g/km of CO2 it represented an incredible result for a saloon of this size and power at the time. That start/stop system does mean you’ll spend more when the battery needs to be replaced, however.

BMW 5 Series (F10) reliability and maintenance

BMW 5 Series running costs are low only in terms of fuel economy. BMW servicing and spare parts aren’t cheap, though this is typical of premium brand main dealers. Generally the aftersales experience is good (as it should be for the money) but with the youngest F10 generation 5 Series now over six years old, they are unlikely to be found within BMW’s approved-used network and unless it’s something particularly special, you’re probably better off finding an independent specialist.

Routine oil and filter changes are easy to do at home but the automatic gearbox and numerous electronic systems need specialist diagnostic equipment and expertise.

Previous versions of the 5 Series have generally been reliable until they reach high mileages and over 15 years old, when minor glitches and electrical faults tend to cause issues – usually exacerbated by cheap replacement parts.

Likewise, the F10 generation should prove durable and dependable if looked after. There are signs that some of the earliest examples do rust if neglected. With so many online marketplaces offering unbranded, third-party replacement suspension and drivetrain parts, you should check any receipts thoroughly before assuming a service history is a guarantee of a car that will drive as-new.