[Basicz]

I would make something like this

pawn Код:

stock createVehForPlayer( playerid, vehmodel )
{
    new 
        Float: pos[ 4 ]
    ;

    GetPlayerPos( playerid, pos[ 0 ], pos[ 1 ], pos[ 2 ] );

    GetPlayerFacingAngle( playerid, pos[ 3 ] );

    new 
        iVeh = CreateVehicle( vehmodel, pos[ 0 ], pos[ 1 ], pos[ 2 ], pos[ 3 ], -1, -1, -1 )
    ;

    SetVehicleVirtualWorld( iVeh, GetPlayerVirtualWorld( playerid ) );

    LinkVehicleToInterior( iVeh, GetPlayerInterior( playerid ) );

    PutPlayerInVehicle( playerid, iVeh, 0 );

    return 1;
}

public OnDialogResponse( playerid, dialogid, response, listitem, inputtext[ ] )
{
    if ( dialogid == 12 )
    {
        if ( response )
        {
            new 
                iList[ ] = { 411, 562, 451 };

            createVehForPlayer( playerid, iList[ listitem ] );
        }
   }

   return 1;
}

Not a bad tutorial.