Daimler's Mercedes-Benz Cars has launched a new generation of I4 petrol engines with the C-Class mid-life facelift, adding a 48 volt system with belt-driven starter/alternator to 1.5-litre ...

Interestingly, M256 is one of the first engines to make use of an electric turbo. Unlike a regular turbocharger, which is reliant on exhaust gas to spin up and provide a power boost, the Mercedes ...