Mercedes are not ruling out introducing two new engines for Lewis Hamilton immediately after the summer break at the Belgian GP.
Such a double hit would guarantee that Hamilton - already on the verge of a penalty - would have to start the race from last on the grid with demotions potentially adding up to 40 places.
Hamilton's engine plight explained
However, by taking all of the pain in a single race, Hamilton, who has already reached the penalty-free limit for two of the six power-unit elements, would then have two fresh engines to use for the remaining nine races of the year.
In a tweak to the regulations mid-way through 2015, there are no longer carry-over penalties if a full grid-drop cannot be applied.