....."Creventic, the Dutch company that organizes this race, as well as other enduros in the 24H Series, uses a unique BoP system where cars are assigned a target time that they are not allowed to lap faster. If they do, penalties in the form of ballast, fuel capacity changes and ride height adjustments could be issued.
In the race, each team gets ten “joker laps”, where their car can exceed the minimum reference lap established prior to the start. With penalties of increasing severity being issued for violations, it adds an an extra layer of strategy to the race."
taken from this -
http://auto-racing.speedtv.com/artic...sday-notebook/