In the absence of an X3 M variant, the BMW X3 M50 xDrive is the Bavarian brand’s flagship G45-series executive SUV in South Africa. It delivers potent performance, but does the 48V mild-hybrid tech add too much complexity to the package?
Earlier this year, we crowned the BMW X3 the 2024/25 Cars.co.za Awards, sponsored by Absa Executive SUV category champion, and we’ve already published a review of the BMW X3 20d xDrive M Sport. In this comprehensive video review, however, Ciro De Siena explores what the range-topping BMW X3 M50 has to offer, assessing both its technological advancements and the real-world driving experience.
Ciro first highlights the significance of the BMW X3 M50 – powered by the renowned B58 3.0-litre inline-6 turbopetrol motor paired with a 48V mild-hybrid system – as the performance hero in the range. This setup produces peak outputs of 293 kW and 580 Nm, and according to our test equipment, the X3 M50 dispatched the 0-to-100 kph sprint in 4.54 sec (slightly faster than BMW’s claim of 4.6 sec)!
BMW Group SA states the X3 M50 will consume an average of 8.2 L/100 km, though Ciro observes that real-world consumption is closer to 9.7 L/100 km in mixed driving. He discusses how the “impressively complex” hybrid system, which includes a lithium-ion battery with a dedicated cooling circuit (and is said to contribute a fuel saving of 0.3 L/100 km), manages energy regeneration and boosts acceleration.
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While he respects the feat of engineering that the 48V mild-hybrid system represents, he quips about the introduction of technical complexity for relatively marginal performance – and efficiency – gains.
In particular, he wonders whether the hybrid hardware and its electronic network will pose future maintenance headaches after the M50 is out of its warranty (5-year/100 000 km maintenance plan).
On the road, Ciro praises the BMW X3 M50 for its taut, confidence-inspiring dynamics, noting that the M adaptive suspension keeps the Bimmer composed over rough surfaces and delivers a truly rewarding driving experience on twisty roads. It’s just as well that the X50 is dynamically adept, because while BMW has chosen to omit an M car from its G45-series, Mercedes-AMG has fitted the flagship of the rivalling GLC with a 2.0-litre 4-cylinder turbopetrol aided by a powerful plug-in hybrid system…
See also: Mercedes-AMG GLC 63 S (2025) Review
He finds the steering sharp and the X3 M50 impressively agile for an SUV of its size, noting that most enthusiasts won’t miss the old BMW X3 M given how capable this M50 is on a fast mountain pass.
The powertrain is punchy and linear, and while the B58 has been subdued for noise regulations, BMW compensates with artificial “Iconic Sounds” in the cabin, which Ciro admits add a sense of occasion.
See also: F15 BMW X5 (2014-2019) Buyer’s Guide
Ciro also discusses cabin tech, pointing out the use of digital interfaces for features as simple as air vents and the expanded “My Modes” drive settings. While some of these digital touches are slick, he wonders whether such intricacy is truly beneficial for owners, expressing a preference for simpler, more robust controls that would make the X3 M50 lighter and, perhaps, easier to maintain in the long run.
How much does the G45 BMW X3 cost in South Africa?
| X3 20 | R1 047 760 |
| X3 20 M Sport | R1 097 760 |
| X3 20d xDrive | R1 136 417 |
| X3 20d xDrive M Sport – Read our review | R1 186 417 |
| X3 30e xDrive | R1 260 000 |
| X3 30e xDrive M Sport | R1 310 000 |
| X3 M50 xDrive | R1 545 447 |
Prices (July 2025) include a 2-year/unlimited km warranty and a 5-year/100 000 km maintenance plan.
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Summary
Overall, the BMW X3 M50 delivers an outstanding driving experience, state-of-the-art technology and refinement. For buyers shopping in the top end of the Executive SUV segment, it will offer the blend of luxury and dynamic prowess expected of a BMW M Performance SUV, but, as Ciro suggests, there remains a strong argument for a more enthusiast-focused, less complicated version for purists.
