[Kindred]

pawn Код:

stock WhoIsDriver(vehicleid)
{
    for(new i = 0; i < MAX_PLAYERS; i++) //Loops through all players
    {
        if(GetPlayerVehicleID(i) == vehicleid && GetPlayerState(i) == PLAYER_STATE_DRIVER) return i; //Returns playerid if the player is in the vehicleid provided AND is the driver
    }
    return 1;
}

Here, try this.