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Audi Q5 vs BMW X5

Figures updated

The Audi Q5 and BMW X5 are two of the UK's most popular large SUVs. We compare the Mk3 (2024–) Q5 and the G05 (2018–) X5 on price, size, boot space, performance, safety and running costs, plus how reliable each has been across 192,662 real MOT tests.

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The short answer

Pick the Audi Q5 for lower fuel costs, or the BMW X5 for the bigger boot.

FigureAudi Q5Mk3 (2024–), 5-door SUVBMW X5G05 (2018–), 5-door SUV
Price and practicality
Price newUK list prices, across the range–£77,010 to £84,875July 2026 price list
Body5-door SUV5-door SUV
Seats55
BootSeats up / folded520 litres / 1,473650 litres / 1,870 (best)
Length4,717mm4,935mm
WidthWithout mirrors1,900mm2,004mm
Height1,625mm1,765mm
Performance
Power204–367 PS298–490 PS (best)
0–62mph5.1–8.6 sec4.8–6.1 sec (best)
Safety
Euro NCAP ratingTests get tougher each year★★★★★ (2025)★★★★★ (2018)
Economy and emissions
Fuel typesHybrid, Plug-in hybridDiesel, Petrol, Plug-in hybrid
Official economyVersions of this generation40.4–47.1 mpg21.8–53.3 mpg
CO238–159 g/km20–289 g/km
Running costs at 7,500 miles a year
Petrol or hybrid171.7p a litre, today's UK average£1,243 (47.1 mpg) (best)£2,470 (23.7 mpg)
Diesel198.4p a litre–£1,869 (36.2 mpg)
Cheapest version to fuelWhichever fuel costs least£1,243 (petrol)£1,869 (diesel)
Car tax a yearCars registered from April 2017£200£200£640 in years 2–6 for versions listed over £40,000
Reliability from real MOT tests
Reliability score153Well above average151Well above average
Failed MOT first time (ages 3–20)16.6% (best)20.5%
Failed at 3 years old8.8% (best)14.5%
Failed at 5 years old10.6% (best)13.2%
Failed at 10 years old19.1%16.1% (best)
Most common MOT faultJoints (2.7% of tests)Condition (2.9% of tests)
Fails more than average onBody and structure (1.5×)Nothing stands out
MOT tests analysed106,52486,138
About the cars
TypeLarge SUVLarge SUV
Owners' average miles a year9,6009,700
On sale2024 on2018 on

Green marks the better figure where the difference is more than 3%. Reliability figures cover every version of each model tested in the year. Running costs use the typical official economy of recent versions (WLTP where available); real-world economy is usually a little worse for every car.

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Frequently asked questions

›Is the Audi Q5 or the BMW X5 more reliable?

There's little in it. Once age and mileage are taken into account, both fail their MOT about as often as each other (reliability scores 153 and 151, where 100 is average).

›Which is bigger, the Audi Q5 or the BMW X5?

The BMW X5 is 218mm longer (4,935mm against 4,717mm). The BMW X5 has the bigger boot: 650 litres against 520.

›Which is cheaper to run, the Audi Q5 or the BMW X5?

Comparing petrol versions, the Audi Q5 costs about £1,227 a year less to fuel at 7,500 miles (£1,243 against £2,470), using typical official economy and current UK average fuel prices.

›Which is safer, the Audi Q5 or the BMW X5?

Euro NCAP gave the Audi Q5 5 stars (2025) and the BMW X5 5 stars (2018). Euro NCAP makes its tests tougher every few years, so ratings from different years aren't directly comparable.

›Should I buy the Audi Q5 or the BMW X5?

Pick the Audi Q5 for lower fuel costs, or the BMW X5 for the bigger boot. The comparison above sets out price, space, performance, safety, running costs and reliability side by side.

Sources: manufacturers' UK specifications and price lists and Euro NCAP (listed on each model's page); DVSA anonymised MOT tests 2024 (Open Government Licence v3.0); Vehicle Certification Agency car fuel data, © Crown copyright, VCA cannot accept liability for its accuracy; fuel prices from the GOV.UK Fuel Finder scheme. Photos from Wikimedia Commons, credited under each picture.