Why not just leave your car behind?
Local buses run throughout the Montafon region. The main routes depart every half hour from the Schruns train station.
Bus stop at the start/end of the tour: Latschau Golmerbahn / Line 1
Timetable: www.vmobil.at
Traveling to the Montafon by Train
From Bludenz Station, the Montafonerbahn runs hourly (sometimes every half hour). There are also direct connections from Lindau (Germany) and Bregenz.
Timetable: www.oebb.at