Smart Toll Option: Only Use Tolls That Save Significant Time

THE PROBLEM
"Avoid Tolls" is all-or-nothing. Turn it on and long trips can take hours longer. Turn it off and navigation sends you through expensive tolls that save almost no time. Drivers end up toggling the setting before every trip.

THE PROPOSAL
Add a "Toll value" setting in Navigation: the maximum price the driver accepts to pay per hour saved (e.g. €20 / $20 per hour). It could be a number field or a slider from "Save money" to "Save time".

For each route, the car computes:
cost per hour saved = extra cost ÷ time saved vs. the best toll-free alternative
If the result is above the driver's threshold, the toll route is not used. If it is below, the toll route is kept. This way, a toll that saves hours on a long highway trip is still taken, while a toll that saves a few minutes is skipped.

REAL-WORLD EXAMPLE (France)
Duplex A86 tunnel near Versailles (ViaMichelin):
- With toll: 26 min, €15.70
- Without toll: 28 min, €2.20
→ €13.50 extra to save 2 minutes = about €405 per hour saved.

Tesla navigation takes this tunnel by default unless "Avoid Tolls" is enabled. With a threshold of €30/hour, the car would skip it automatically, without the driver having to change any setting.
(See attached screenshots comparing cost and duration of both routes.)

NICE-TO-HAVE
- Show on the route preview: "Toll: €X, saves Y min (€Z/h)".
- Keep the current "Avoid Tolls" toggle for those who want it.
- Optional default per driver profile.

BENEFIT
Fewer wasted fees, no more Avoid Tolls toggling, and time saved where it counts.