Tesla is opening a few of its fast Supercharger stations for vehicles of other electric car makers like VW, Mercedes, BMW, Hyundai, and others to use. Charging non-Tesla vehicles is available at a slightly higher cost in a potential pivotal moment for charging standards interoperability.
https://www.notebookcheck.net/Tesla-Superchargers-open-to-non-Tesla-electric-cars-in-a-game-changing-pilot.577042.0.html