What is it?
It's a BMW 1-series with four-wheel drive. UK orders for the BMW 320i xDrive since its book opened in June have been encouraging, and have had us eyeing Munich’s other non-SUV four-wheel-drivers with interest. In Germany, most models can be had with xDrive, including the 1-series hatch in sprinting M135i form and in workaday 120d guise as seen here.
The model answered demand from Germany, Austria and Switzerland, and joins an expanding xDrive range that already accounts for a third of BMW's sales. Germany, the USA and China all buy more xDrives than Audi quattros, so, clearly, that leaves room for improvement in the UK.
Most of Audi's quattro-equipped cars use a Torsen centre differential to apportion torque but, like the A3 and TT, xDrives use a multi-plate wet clutch instead. BMW claims its system is the most quick-witted, reacting in 0.1sec, and anticipating wheel slip via the DSC’s myriad sensors. Torque can be totally redistributed fore or aft from the default 40 per cent front, 60 per cent rear setting.