Speed, flexibility, aesthetics, power and appeal - today's drivers expect a lot from their cars. Spontaneity is especially important: we all want to be able to put our plans into action quickly. The BMW X3 is the first Sports Activity Vehicle with the intelligent xDrive all-wheel-drive system, which actually makes it surprisingly accomplished off road. The diesels are undoubtedly the better choice with far superior torque to the petrols, which feel less potent than they should. On the road, the X3 feels responsive and offers a rewarding drive - but the ride is quite firm which detracts from overall refinement.