The BMW X3 and X5 are luxurious, capable SUVs that offer an engaging driving experience true to the brand's performance heritage. While they share some DNA, these two models are quite different in size and positioning.
The X3 is BMW's mid-size SUV offering, slotting between the compact X1 and larger X5. It competes against rivals like the Audi Q5, Mercedes-Benz GLC, and Volvo XC60. The latest fourth-generation model debuted in 2025, bringing an evolution of the sharp styling and premium cabin we've come to expect.
While not quite BMW's flagship SUV (the X7 and XM share that accolade), the X5 is a larger and even more upmarket car than the X3. This fourth generation X5 was launched in 2019, and goes up against other large luxury SUVs such as the Audi Q7, Mercedes GLE, and Volvo XC90. With an expansive interior and powerful engine lineup, the X5 aims to blend premium amenities with signature BMW driving dynamics.
BMW X3 vs BMW X5
Practicality
The BMW X3 delivers impressive practicality for a mid-size premium SUV. There is generous legroom in the rear seats, even with the optional panoramic sunroof. The cabin is wide enough to accommodate three adult passengers abreast on the 40:20:40 split-folding rear bench. Luggage volume is a useful 570 litres with all seats up.
The larger X5 takes things further as a true family hauler. It offers plenty of room for adults across all three rows when specified with the optional third-row seating. Even with just two rows, the squared-off boot area provides a cavernous 650 litres of cargo space that expands to 1,870 litres with the rear seats folded. The split tailgate design also aids practicality.
While both models impress with their family-friendly versatility, the X5 has the edge in outright space and flexibility thanks to its bigger footprint and clever packaging. It definitely has the advantage in this category, though the X3 remains an extremely practical choice in its segment.
Driving Impressions
BMW is renowned for building SUVs that drive more like sports cars, and the X3 and X5 certainly live up to that reputation. Both feature a range of powerful turbocharged petrol and diesel engines mated to slick-shifting eight-speed automatic transmissions and standard all-wheel drive.
The X3's powertrain lineup starts with a 205hp 2.0-litre turbo petrol, while the 20d diesel makes 194hp. A 295hp plug-in hybrid 30e joins the range, as does the brawny 393hp M50 performance model. On the road, the X3 feels alert and agile, with the optional adaptive suspension providing impressive body control in Sport mode or a more compliant ride in Comfort.
The larger X5 mirrors this sporty driving character despite its increased size and weight. Engine choices include a punchy 282hp six-cylinder diesel, while the range-topping X5 M Competition packs a monstrous 617hp twin-turbo V8. Like the X3, the X5 blends precise steering and minimal body roll with a well-judged ride quality when specified with air suspension.
While the X5 musters slightly more outright performance thanks to its stronger engine options, the X3 arguably provides the more engaging driving experience overall thanks to its lighter, more playful chassis. Either way, keen drivers will appreciate the dynamic talents of both SUVs.
Technology and Equipment
Both the X3 and X5 come generously equipped with the latest tech and luxury amenities you'd expect from BMW. Standard kit includes features like LED lighting, power tailgates, heated front seats, and BMW's iDrive infotainment system with touchscreen, navigation, and smartphone integration.
The cabins make good use of premium materials, though some lower plastic trim betrays the models' more mainstream roots compared to BMW's pricier offerings. M Sport trims add sporty styling touches inside and out.
Where the X5 pulls ahead is with its more sophisticated tech options. Items like massaging seats, a panoramic roof, and cutting-edge driver aids are on the menu for those willing to pay extra. The X5's larger cabin also provides more room for these upscale amenities to shine.
Still, even the X3 delivers a suitably premium experience with its logically laid out controls and high-resolution digital displays. The iDrive system remains class-leading for ease of use. While the X5 has the richer palette of tech toys, the X3 covers all the key bases for most buyers.
Running Costs
As you'd expect from large premium SUVs, running costs for the X3 and X5 are on the higher side. Exact fuel economy will depend on which engine you choose, but even the most frugal diesel models return real-world mpg figures in the low-to-mid 30s.
The plug-in hybrid 30e X3 and 45e X5 drastically reduce fuel costs if you can regularly charge and maximise electric driving. However, their official ultra-high mpg figures are best taken with a pinch of salt if you frequently deplete the battery charge.
Other associated costs like insurance, maintenance, and road tax will also be steeper versus more mainstream alternatives. That said, BMWs tend to hold their value well, which helps offset these higher running costs over time.
Overall, the smaller and lighter X3 will cost slightly less to run than the larger X5 thanks to better fuel economy and lower tax obligations. But neither will be particularly cheap to keep on the road compared to more affordable mainstream SUVs.
Verdict
The BMW X3 and X5 both deliver on the brand's promise of premium driving enjoyment wrapped in a practical SUV package. Which one is right for you will depend on your priorities - and your budget.
If you want maximum interior space and versatility from a large luxury SUV, the X5 is the more compelling choice. It offers cavernous accommodations for passengers and cargo, along with the most cutting-edge tech features if you're willing to pay extra.
However, the X3 remains an extremely well-rounded and slightly more affordable proposition. It provides most of the upscale experience and fun driving dynamics in a slightly more wieldy package. Unless you absolutely need the X5's extra room, the X3 could be the smarter buy.
Ultimately, both models showcase BMW's ability to blend driving pleasure with everyday usability and either will likely provide a great ownership experience. If we had to choose, and if we had the budget, we'd plump for the X5.