BMW’s Turbo Steam Fuel Saving Concept

Deutsche Presse-Agentur:

MW engineers are working on a steam-powered auxiliary drive system that reduces fuel consumption by up to 15 per cent and boosts performance at the same time, the car maker said.

The ‘Turbosteamer’ concept applied to a 1.8 litre, four-cylinder petrol engine recycles the waste heat in the exhaust gases and cooling system.

In tests, the Turbosteamer produced 13 additional hp in performance with 80 per cent of the energy in the exhaust gases recycled, according to the manufacturer.