The BMW X3 (2021-24) M40I XDRIVE 5DR SUV 3.0I MHT 360 GPF SS EU6 AUTO8 is a premium five-door midsize SUV, combining family-friendly space with a sporty character. In the UK market, it sits above mainstream choices, competing directly with performance-focused premium versions of the Audi Q5 and Mercedes-Benz GLC. Mycarcheck.com records 735 look-ups covering 436 different VINs, a substantial snapshot of used-car interest. Across those checks, the average private-sale valuation was £41,500, average recorded mileage 26,000 miles and annual mileage 7,000. Cars averaged just over half a previous keeper, suggesting many recorded examples had one or no keeper changes. The 3.0-litre mild-hybrid petrol engine, four-wheel drive and quick automatic deliver brisk, confident performance. It suits families and commuters wanting space, comfort and pace, while its premium finish and engaging drive help it stand apart from Audi Q5 and Mercedes-Benz GLC rivals. Expect higher running costs than mainstream family SUVs.