Skip advert
Advertisement
In-depth reviews

BMW X6 SUV - MPG, running costs & CO2

Performance takes priority over running costs

Carbuyer Rating

3.6 out of 5

Owners Rating
Be the first to review
MPG, running costs & CO2 Rating

3.5 out of 5

Despite the fact it's an SUV, the X6 is clearly tilted in the direction of performance and this is borne out by its fuel efficiency. This won't be a cheap car to run, particularly in M Performance forms, and servicing and insurance costs are also likely to be pricey.

BMW X6 MPG & CO2

Most BMW X6 drivers are likely to rack up motorway miles, so while diesel may be falling out of favour for smaller cars, many are still likely to favour the 30d version of the X6 because of its fuel-efficiency of up to 40mpg. This is helped by mild-hybrid technology, which harvests energy as the X6 slows down and then uses it to power the electrics and assist the diesel engine under acceleration. With CO2 emissions from 187g/km upwards, all versions sit in the top tier for company-car drivers paying Benefit-in-Kind tax. The M50d sees economy drop to a maximum of 34.4mpg, while CO2 emissions range from 216-222g/km depending on specification.

Advertisement - Article continues below

Choose and X6 with a petrol engine and the xDrive40i can manage up to 32mpg if you take it gently, but the V8-powered M60i is thirstier still, with this figure plummeting to a best-case of 25mpg. Priced at well over £40,000, every version of the X6 will cost more than £500 to tax in the first five renewal years, dropping to the standard rate thereafter.

Insurance groups

Even the lowly xDrive30d engine in the least expensive Sport trim sits in group 49 out of 50 for insurance, so this is going to need to be factored into your budget. All currently available petrols occupy the highest insurance group.

Warranty

BMW provides a fairly rudimentary three-year warranty but at least there's no mileage cap during this period. This is on a par with rivals like Mercedes, and slightly more generous than Volkswagen or Audi.

Servicing

BMWs have on-board sensors which monitor the vehicle and dictate when a service is due, depending on how it's driven and its condition. Servicing plans are available from the dealership to help spread the cost of maintenance equally over a few years.

Skip advert
Advertisement

Andy is Carbuyer's managing editor, with more than a decade of experience helping consumers find their perfect car. He has an MA in automotive journalism and has tested hundreds of vehicles.

Skip advert
Advertisement

Recommended

BMW X6 – the original Coupe-SUV
BMW X6 facelift UK drive
In-depth reviews
21 Dec 2023

BMW X6 – the original Coupe-SUV

Most Popular

Engine management light: what to do if it comes on
Engine warning light
Tips and advice
12 Jun 2024

Engine management light: what to do if it comes on

New Alpine A290: fast, stylish and very blue electric hot hatchback revealed
Alpine A290 front quarter
News
13 Jun 2024

New Alpine A290: fast, stylish and very blue electric hot hatchback revealed

Best new car deals 2024: this week’s top car offers
Carbuyer best new car deals hero
Deals
14 Jun 2024

Best new car deals 2024: this week’s top car offers

Tips & advice

View All
Car dashboard warning lights: the complete guide
Car dashboard symbols and meanings
Tips and advice
26 Mar 2024

Car dashboard warning lights: the complete guide

Electric car charging stations: a complete guide
Public EV charge point
Tips and advice
11 Jan 2023

Electric car charging stations: a complete guide

PCP vs HP – which type of car finance is right for you?
PCP vs HP
Tips and advice
17 May 2022

PCP vs HP – which type of car finance is right for you?

Average speed cameras: how do they work?
Average speed cameras: how do they work?
Tips and advice
21 Mar 2024

Average speed cameras: how do they work?

Best cars

View All
Top 10 best car interiors
Peugeot 208 hatchback
Best cars
25 Jun 2021

Top 10 best car interiors

Top 10 best electric cars 2024
Best electric cars
Best cars
16 May 2024

Top 10 best electric cars 2024

Top 10 best cheap-to-run cars 2024
The best cheap-to-run cars 2023
Best cars
2 Jan 2024

Top 10 best cheap-to-run cars 2024

The UK's top 10 fastest hot hatchbacks 2024
Fastest hot hatchbacks hero
Best cars
2 Jan 2024

The UK's top 10 fastest hot hatchbacks 2024