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Volkswagen's research team created a prototype vehicle called “FUTURA”. The power unit is a low-consumption, low-emission unthrottled petrol engine employing a high-pressure pump to inject petrol directly into the combustion chamber. At partial load, evaporation cooling additonally helps to reduce consumption because component and oil temperatures are regulated to suit engine output. This concept represents a solution to CO2 problems in spark igniton engines. At this stage, it is impossible to say whether this concept could be developed into a mass-production engine.