Mercedes-Benz is extending its S-Class range with another diesel variant, the S 420 CDI. The new eight-cylinder model is powered by a V8 CDI engine developing 235 kW/320 hp and 730 newton metres of peak torque.

The new V8 model's strengths are superior performance combined with moderate fuel consumption. The S 420 CDI powers from 0-100 km/h in 6.6 seconds and goes on to reach 250 km/h (electronically governed), all while returning fuel consumption figures below the magic ten litre threshold, burning 9.4-9.6L of diesel per 100km. With a fuel tank capacity of 90L, this equates to ranges approaching the 1000 kilometre mark.

This latest addition to the model line-up means that the luxury saloon range from Mercedes-Benz now encompasses two diesel engines, six petrol models and two body variants, along with 4MATIC all-wheel-drive system.