Tyre to travel
This is one of the great software programs that I used to plan my trips and export them to my navigation system. It has all the great advantages of Google maps and easy export to your sat nav.
TyreToTravel is the platform for searching, making and sharing routes. And Tyre is the program that integrates Google Earth / Maps with Tom Tom or Garmin.
Watch out only which file you choose to download because there is a lot of fake download links for shareware: use this one.