carwow's Matt Watson does a proper head-to-head between the all-new BMW iX3, the electric platform set to underpin the next 40 BMW models, and the petrol X3M. Tests include a drag race (X3M wins by a whisker), a rolling race (iX3 takes it convincingly), braking (iX3 stops shorter despite being 315 kg heavier), a moose test (iX3 more composed), boot space, and a baby seat challenge. After a week of real-world driving, the iX3 averaged just 3 miles per kilowatt hour, a full third less efficient than a Tesla Model 3 on the same roads, and its claimed 490-mile range came closer to 300 in practice. Instagram gave the old car 79% of the design vote. A thorough and honest look at a car BMW simply cannot afford to get wrong.