[Randy More]

Instead of defining "car" variable for each menu item, define it globally that way:

pawn Код:

new car[MAX_PLAYERS];

then each time a vehicle is being spawned the current gets destroyed like that..

pawn Код:

DestroyVehicle(car[playerid]);

So it be finally like that..

pawn Код:

// Anywhere after the includes..
new car[MAX_PLAYERS];

// An example of responding to a menu-item.. 
case 0: //go kart
{
            new Float:x, Float:y, Float:z, Float:a;
            GetPlayerFacingAngle(playerid,a);
            GetPlayerPos(playerid, x, y, z);
            if(car[playerid] != INVALID_VEHICLE_ID) DestroyVehicle(car[playerid]);
            car[playerid] = CreateVehicle(571,x,y,z+4,a,-1,-1,30000);
            PutPlayerInVehicle(playerid,car,0);
            SendClientMessage(playerid, 0xFFFFFFFF, "Je selecteerde een Go Kart");
 
}