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View all Audi Q8 reviews
Parkers overall rating: 4.3 out of 5 4.3
  • Reasonable claimed fuel economy
  • Servicing and parts will be pricey
  • Three-year, 60,000-mile warranty as standard

Fuel economy for the Q8 50 TDI (286hp 3.0-litre diesel) is yet to be confirmed, but expect it to not deviate too much from the equivalent Q7’s claimed average of 50.4mpg. The upcoming Q8 55 TFSI efficiency is also unconfirmed, yet can be expected to claim an average of 35-40mpg.

Insurance and servicing will be at the upper end of the scale, while depreciation is likely to be steep, yet nevertheless competitive with the Q8’s rivals.

  • No confirmed hybrid version as of yet
  • All cars do come with mild-hybrid tech, however…
  • …helping to save fuel and reduce emissions

Exact emissions figures for the Q8 haven’t been confirmed, but this being a brand-new model, they will almost certainly be competitive with the car’s rivals. We’ve not had any confirmation of a hybrid version (along the lines of a Q7 E-tron) yet, but every Q8 does come with mild-hybrid technology.

Using a lithium-ion battery and 48-volt primary electrical system, the Q8 is able to coast between speeds of 34 and 99mph, saving fuel and emissions when the engine isn’t under load.

  • Brand-new model featuring the latest tech
  • Based on the Q7 platform and uses tried and tested mechanicals
  • The vehicle’s complexity mean’s there’s plenty to go wrong, however

Sharing a platform with the Q7, the Q8 uses many tried-and-tested Audi parts that have proven reliable over the years. However, there has been reported issues with the Q7’s Virtual Cockpit system and Matrix LED headlights. The Q7 has also been subject to four official DVSA recalls.

Just bear in mind that with such a vast array of complicated systems onboard, the Q8 will always have the potential for issues.

Estimated fuel cost per year

Fuel type Pence per litre Estimated cost per year *
Diesel 131p £1,453 - £1,453 *

* 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)
3.0 TDi (286ps) Diesel 178 g/km (Min) £465
3.0 TFSi (340ps) Petrol 207 g/km (Max) £465

Ongoing running costs

Road tax (12 months) £465
Insurance group 47 - 49
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.