The second generation of BMW 1 Series has come on leaps and bounds from the cramped but stylish original. It is packed with more equipment and a superb range of frugal petrol and diesel engines, while maintaining its position as the most enjoyable car in its class, to drive. There's more room inside the cabin and a bigger boot, too – making the current car a rival for more traditional family cars like the VW Golf and Ford Focus, as well as upmarket alternatives like the Audi A3 and Mercedes A-Class. Optional adaptive dampers make it comfortable over long distances, and a well-built interior mean it's a pleasurable place to sit, too. All cars feel punchy, but the M135i – which undercuts the old 1M Coupe – is the best of the bunch, managing 0-62mph in less than five seconds. Current bodystyles are limited to just three or five-door hatchbacks, while the 1 Series Coupe and Convertible are based on the previous generation car.