The four-cylinder diesel engines in the BMW X1.
Diesel engines are still good for surprises. The BMW X1 features the world‘s first four-cylinder diesel engine with Variable Twin Turbo. Alongside the ultra-lightweight aluminium engine block, two different-sized turbochargers are deployed sequentially to deliver blistering power of up to 150 kW (204 hp) at any speed range. At the same time, fuel consumption is a surprisingly frugal 5.2 litres per 100 kilometres.