Safety car
Safety car regulations in 2008 meant that the pit lane was closed until all cars had been bunched up behind the safety car. Hence the advantage of the lead cars would be eliminated before they were able to pit and after they did pit, they would re-enter the race at the back of the field. Alonso, having pitted just before the safety car was introduced, therefore gained a significant advantage. (Under previous regulations, the pit lane remained open during safety car incidents and the lead cars could quickly pit before their lead was eliminated and re-enter the race with less loss of track position.) In order to avoid running out of fuel, some drivers did need to pit while the pit lane was closed and they were penalised for the infraction.