BMW all-wheel-drive system gives people a car that is usable in all weathers
Routes can quickly become wet, slippery, and tricky to navigate, especially in rural areas. Two-wheel-drive cars can often struggle here — especially those with the power sent to just the rear wheels — which is why many manufacturers offer four-wheel-drive versions of their most popular models.
One such car maker is BMW, which applies four-wheel-drive technology to many of the cars in its range. It calls this system XDrive. BMW introduced its first all-wheel drive model in 1985, with the 325i ‘Allrad’. This utilised visco locks, which could create a strong connection between the front and rear wheels. It did this by monitoring which wheel slipped and which gripped, and adjusting the power sent to each one accordingly.
