We're traveling from the Tyrol to SW Germany via car, and I thought it'd be interesting and scenic to pass through both Lichtenstein and Switzerland, since we've never been to either country. But it seems a waste of money to pay CHF40 for a 14-month vignette solely for a drive of only a few hours. (Note: We will already have an Austrian vignette, and I have an IDP.)
If I understand correctly, the Swiss vignette is required only on major highways, as indicated in red on this map:
So if true, can I avoid the vignette requirement (and cost) by staying off those roads? By way of example, I plotted a route in Google Maps from Vaduz to Freiburg im Breisgau and selected the option "avoid highways," and this is the result:
Google Maps - 2 different route options
Comparing these routes to the vignette map, it looks like these routes would indeed keep me off vignette-required roadways, at the expense of only about an extra hour (which is fine, since the goal is to have a scenic drive).
Can anyone with knowledge of Swiss vignettes tell me if this all checks out as correct and reliable?