På længere sigt, 2010 eller 2025, vil man gennem kontinuerligt virkende automat­gear og nye motortyper (motorer med »ekstern forbrænding«, gasturbiner) kunne opnå yderligere besparelser, således at det specifikke forbrug bliver halveret i forhold til i dag.
In the longer term, say by the year 2010 or 2025, further savings are likely with the development of continuous transmission systems and new types of engine (external combustion and gas turbine engines); this would bring down specific consumption to 50% of the present levels.