The BMW X3 (2021-24) M40D XDRIVE 5DR SUV 3.0D MHT 340 DPFR SS EU6 AUTO8 is a premium mid-size SUV, combining family-friendly space with a refined feel. In the UK, it sits above mainstream SUVs, appealing to buyers wanting comfort, performance and four-wheel-drive confidence without moving to a luxury model. Mycarcheck.com recorded 442 checks covering 272 distinct VINs, a sample of interest in this model. Its data shows an average private-sale valuation of £42,900 and average recorded mileage of 31,000 miles, with annual mileage averaging 10,000. The average previous-keeper figure was 0.67, suggesting checked examples had changed hands little. That mix makes this X3 suited to families, commuters and longer-distance drivers. Its diesel mild-hybrid setup aims to balance response with sensible economy. It stands out for six-cylinder performance and a polished cabin, offering a sportier alternative to the Audi Q5 and Mercedes-Benz GLC. Check history and condition before buying.