Details of the middle model in BMW’s X range was released back in July, but it’s only now that the all-new X3 gets its public motor show debut. Codenamed F25, the second generation X3 is bigger than the car it replaces, because BMW needs to put some distance between it and younger brother X1.

Dimensionally, the new X3 is 12 mm taller, 83 mm longer and 28 mm wider, with 12 mm more ground clearance. Wheelbase has grown slightly from 2,795 mm to 2,810 mm. For comparison, the X1’s wheelbase is 2,760 mm long so there’s a 50 mm gap there. Boot space ranges from 550 to 1,600 litres and the rear seat bench folds down at a ratio of 40:20:40 instead of the usual 60:40. BMW says that the X3 delivers more room and versatility than any rival in its class.

Munich offers a choice of two engines for Europe – a four-cylinder diesel with 184 hp (xDrive20d) and the xDrive35i with a 306 hp inline six petrol. The former has more power and 14% better economy than before – to 5.6 litres per 100 km. The six-pot petrol can be had with an eight-speed auto ‘box, which is combined with Auto Start-Stop for the first time here. Drive is channelled via the handling improving xDrive permanent AWD system.

The F25 is also the first X model to feature EPS steering as standard, while a new variable sports steering is optional. The optional Dynamic Damping Control features electronically controlled adaptive dampers which the driver can manipulate under Drive Dynamic Control. Modes available are Normal, Sport and Sport+. Also in are driver assistance systems from BMW ConnectedDrive, which include Adaptive Headlights, Head-Up Display and a rear view camera with Top View.

See our previous post for more details, official pics and a video. Live images after the jump.

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