«Just by adding a piece of software and a simple cable, cars can save 2.6% of fuel consumption,» he told reporters. Even more fuel, roughly 5-6%, could be saved by switching the engine on or off but this would also require modifications to the engine.
The project was tested using vehicles from Ford, but the software can be used in any car with an engine computer. We suspect car manufacturers will implement something similar in the near future to help curb emission levels in an attempt to meet the impending European Commission targets that have been proposed recently.