Not long after we received our long-term Tesla Model S, a message appeared on its large touch-screen display: "Software Update: There is a new version of your Tesla Model S software." How strange. This would take about two hours to download, it explained, and commence at 2:20 a.m. the next night. After carefully thinking over whether I'd be driving the car between 2:20 and 4:20 a.m., I clicked "OK" and left.

The following morning, the screen displayed another message: "Update Succeeded – What's New in Release v4.5" In the explanatory notes that followed I learned that the Google Maps-based Nav system was now pre-loaded with all of the Supercharger locations (including pins on the map).