[AndreiWow]

Код:

CMD:deleteveh(playerid,params[])
{
    if(IsPlayerInAnyVehicle(playerid))
    {
        new vehicleid = GetPlayerVehicleID(playerid);
        DestroyVehicle(vehicleid);
        SendClientMessage(playerid, COLOUR_RED,"You have removed this vehicle");
    }
    else
    {
     SendClientMessage(playerid, -1, "Your text.");
     }
    return 1;
}

Try this?