TTS allows tags to be added onto snapping points, filtering what snaps to that location. There may be a way of setting all snapping tags on the maps to “Car” then excluding what isn’t a car “Weather”, “Corner”, “Segment”, and “Press”.

Days of Wonder Announced a coming Expansion a few days ago, due out in February, “Heat: Heavy Rain”. It adds a “Orange” 7th Player, “Japan” and “Mexico” Maps, flooded sections, Chicanes (double corners), new parts with new heat mechanics, and some miscellaneous cards. I felt I should give you a heads up. https://www.daysofwonder.com/heat/heavy-rain/