new getveh[ MAX_PLAYERS ];

CMD:getveh( playerid, params[ ] )
{
    new v1;
    if ( sscanf( params, "i", v1 ) )
    {
        return SendClientMessage(playerid, -1, "Syntax: /getveh <vehicle ID>");
    }
    if ( getveh[playerid] > 0 ) {
    DestroyVehicle(getveh[playerid]);
    getveh[playerid] = 0;
    new Float:x, Float:y, Float:z;
    GetPlayerPos(playerid, x, y, z);
    getveh[playerid] = CreateVehicle(v1, x, y, z, 90, 0, 0, false);
    PutPlayerInVehicle(playerid, getveh[playerid], 0);
    SendClientMessage(playerid, -1, "You already had a vehicle created. It has been deleted and a new one spawned.");
    }
    else {
    new Float:x, Float:y, Float:z;
    GetPlayerPos(playerid, x, y, z);
    getveh[playerid] = CreateVehicle(v1, x, y, z, 90, 0, 0, false);
    PutPlayerInVehicle(playerid, getveh[playerid], 0);
    SendClientMessage(playerid, -1, "Your vehicle has been created.");
    }
    return 1;
}