Ferrari driver Sebastian Vettel expects the new start rules to play havoc in the Belgian Grand Prix this afternoon.
Drivers are no longer allowed to receive any guidance from their race engineers, who tend to advise start settings based on data they receive in the garage.
Vettel is not a fan of the new rules, but believes there could be a lot of excitement at the start of the race.
"I don't really get the point of what we're trying to achieve. I don't think it will change much but it may be a bit chaotic on Sunday," he told Sky Sports News.
The race starts at 1pm.