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View all BMW 7-Series reviews
Parkers overall rating: 4.5 out of 5 4.5
  • Plug-in hybrid 745e leads 7 Series efficiency
  • Diesel 730d will prove better on longer commutes
  • Service Inclusive package keeps maintenance costs down

Clearly, if you have the necessary resources to buy one of these cars brand new, then BMW 7 Series running costs are likely to drift into insignificance.

That said, clearly the diesel models – or the plug-in hybrid, depending on your usage – are likely to offer the lowest daily running costs.

The 730d is claimed to return up to 41.5-44.1mpg, and is likely to prove the more efficient for regular motorway use and longer journeys.

Where the plug-in hybrid 745e excels is for drivers who are predominantly city-based and can maximise the potential 36 miles of electric-only range. BMW claims an average of 123-141mpg under the official tests.

That’s in part down to the clever hybrid system and its intelligent energy management – this uses the car’s GPS to work out when to use petrol and electric power most efficiently along the route.

The one to avoid? Unsurprisingly it’s the V12-engined M760Li flagship with an official claim of 20.8-21.6mpg.

And all come with BMW’s Service Inclusive package, which covers the car’s general maintenance and basic consumables for the first five years or 50,000 miles.

If driving the cleanest BMW 7 Series is important to you then hunt out the plug-in hybrid 745e for the lowest CO2 emissions. So low, in fact, that it’s officially rated at 48g/km.

Diesels remain a more popular choice, though, with the leading 730d emitting a respectable 138g/km of CO2.

These startlingly good figures are achieved through the car’s use of Carbon Core technology for the structure, which lowers the weight by around 130kg over a similarly specified example of its predecessor, and range of Efficient Dynamics technologies. ECO Pro mode is standard on the 7 Series, as is brake energy regeneration, start/stop and electric power steering.

Also employed is an Active Airstream kidney grille, which alters the amount of airflow into the engine bay, and along with the vents for the front brakes lowers the CO2 emissions of the car by 3g/km alone.

The worst offender in the range? It won’t come as a surprise: with its 6.6-litre twin-turbo V12 petrol engine, CO2 output is an eye-watering 282g/km.

  • Lots of fresh tech, but BMW’s reputation is strong
  • Plenty of bespoke-feeling elements in the cabin
  • Feels exceptionally well-built, so should last well

Don’t be suspicious of the viability of all of the on-board technology here, because we still expect BMW 7 Series reliability to be exemplary.

Certainly, like any other car, it’s been tested to beyond its limits to ensure that every component and new element of technology will work perfectly for many years.

Most engines have seen service in other BMW models, and have proved reliable there – so we’d expect a similar performance in the new 7 Series, while the V12 and plug-in hybrid options are have been created following years of painstaking development.

Of course the new cabin has a more bespoke, hand-finished feel than any previous model, but despite these fine materials, it all looks to be solidly constructed and hard-wearing.

According to the vehicle inspectorate VOSA, there has been one recall so far for this-generation 7 Series, relating to a possible airbag issue.

Estimated fuel cost per year

Fuel type Pence per litre Estimated cost per year *
Unleaded 128p £1,419 - £2,645 *
Diesel 131p £1,063 - £1,323 *

* The estimated fuel cost figure is based on an annual mileage of 10,000 miles and is a guide to how much this model will cost in fuel each year. It's calculated using the model's average MPG (calculated from both town centre and motorway driving) and the average fuel price from around the country. Actual fuel costs will vary based on driving style and road conditions.

Highest and lowest CO2 emissions

Engine CO2 emissions Road tax (12 months)
Petrol/PlugIn Elec Hybrid 48 g/km (Min) £455
760Li Petrol 294 g/km (Max) £465 - £570

Ongoing running costs

Road tax (12 months) £0 - £570
See tax rates for all versions
Insurance group 44 - 50
How much is it to insure?

Vehicle excise duty (VED) varies according to the CO2 emissions and the fuel type of the vehicle. For cars registered before 01 March 2001 it is based on engine size. For cars registered on or after 01 March 2001 the VED or road tax is based on the car's CO2 emissions.