Here’s a couple of my favorite in-car sites (Tesla optimized...)
Waze viewer - shows traffic conditions and user alerts (like police) on a map:
https://teslawaze.azurewebsites.net/
Tesla Winds and Elevation - uses the gps sensors to pull local wind speeds and calculate you speed, direction and elevation changes to estimate the impact of wind and elevation changes on range. The wind direction thing is kind of in the Waze thing also. Needs some API keys to pull the wind and location data, but is pretty cool to watch it update as you drive... helpful in windy situations on road trips in an EV:
https://teslawinds.com/