Formula One drivers will have to start races carrying the same fuel load they finish qualifying with after a change in the rules.
Team bosses will have to rethink race strategy under the new regulations which will prevent refuelling between the end of one-lap qualifying on Saturday and the race itself on Sunday.
They will have to send their drivers into the race knowing the car will be below the ultimate capacity they would perhaps like because of the fuel used in the qualifying lap.
With drivers favouring a low fuel load during qualifying, that could mean a whole new strategy on pit stops.
The warm-up session on Sunday mornings could be cancelled to negate the need to carry even more fuel.
Max Mosley, the president of the sport’s governing body FIA, is backing the change.
“The warm-up on Sunday should disappear and that is now the subject of a vote of the Formula One commission,” said Mosley.