Quote:
Originally Posted by Eagle Creek
So what you are saying is BMW chooses to use a little bit of gas to keep the engine running and by doing so prolonging the amount of time no additional gas for acceleration is needed?
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It would seem that that is the logic, yes. Perhaps the car can glide for short periods as well?
https://en.wikipedia.org/wiki/Gliding_(vehicle)
That would provide the best of both worlds - no fuel used and no energy loss to the frictional forces inside the engine. However, this might not be safe to do without 48V (which the G20 does not have yet), because the electro-hydraulic braking system may require more energy than could be provided by the battery alone, and it might not be possible to fire up the engine quick enough to provide that in a panic situation.