Forza Horizon 3 Endurance Events

The Forza Horizon 3 endurance events are events set up by the mods and Purple that are usual based around specific classes or eras of cars. They are usually held on Saturdays at 9pm UTC and last about an hour and a half. Typically races are circuit races with 20 to 25 laps ranging from full tarmac courses to mixed surface tracks depending on the theme.

Rules
When an event is announced a set of rules is usually provided for competitors convenience.These rule detail Requirements for the cars competing as well as any other information such as exceptions. This list usually goes as follows: These rules aren't set in stone and are flexible depending on event.
 * A ban on drive-train, engine and aspiration swaps
 * A max limit on PI
 * A ban on Forza Aero
 * A tire requirement (Usually either no stock or Dirt tires)
 * A livery requirement (optional)

Themes
The Endurance Events Have a dedicated theme from which the cars are decided. This can range from Group A Rally cars to DTM Cars. The details of the event are usually released a week before the event as to allow people to tune there cars and make adjustments.