@andygol Your comment makes no sense to me. 1. I own one of “their cars” and it is using incorrect data. 2. Tesla’s own manual says that they use “map data”, but doesn’t say where the map data is obtained from. 3. The speed limits that I see in Speed Assist in my car while it is on Northbourne Avenue and federal Highway agree with OSM and don’t agree with the street signs. 4. Please explain what happened in the case of this video where Telsa Life fixed a speed limit in Tesla’s Speed Assist by changing it in OSM.