Impromptu race for party

Basically i’m asking if it’s possible to add the impromptu race feature of retail gta5 to i99.
Only available in a party and only the party leader can start one.
Basically leader sets a waypoint, end checkpoint gets set, start checkpoint is set at leader. everyone that enters the startpoint joins the race, people freeze - countdown happens, race starts.
Make it also possible that the leader can cancel the race incase a checkpoint is wrongfully set.



that would be a nice thing, a impromptu babarace