The BMW X3 (2004-06) 5DR SUV 3.0D SE AUTO is a five-door premium compact SUV: a higher-riding alternative to a family hatchback, with automatic transmission and a diesel engine. In the UK used market, it sits between mainstream 4x4s and larger, more expensive luxury SUVs, appealing to drivers wanting BMW refinement and all-weather versatility in one package. mycarcheck.com records show 665 look-ups covering 270 distinct VINs, giving a useful snapshot of buyer interest. Checked examples average about £1,500 in private-sale value and 119,000 miles; recorded annual mileage averages 5,000, while previous keepers average just over five. These figures describe the vehicles checked, not a guarantee for any individual X3, so condition and history matter. Roomy, with useful boot, elevated view and smooth automatic, it suits families and commuters seeking comfortable long-distance travel. Its six-cylinder diesel and premium feel distinguish it from rivals such as RAV4 and Freelander, though upkeep may cost more.