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Bosch is now offering the system to other automakers.

It's not just for power, it's also for fuel efficiency.

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As if the M4 needed more power. Scratch that – everything needs more power. This is what it looks and sounds like.

Official

BMW furthers development of its direct water injection system by fitting it to a three-cylinder 1 Series hatchback, complete with an on-board water recuperation system.

Official

BMW has been providing the safety cars for the MotoGP series for 16 years now, but this latest M4 outfitted for duty also packs an innovative water injection system to optimize combustion that could see implementation on production models in the near future.