Tesla Superchargers are about to get a lot busier as GM EVs are gaining access to them. Customers must buy a $225 adapter and use their app to initiate and pay for charging. GM has already confirmed that native NACS ports are coming next year.

GM becomes the third automaker with access, but with almost a dozen different cars under three brands, this almost triples the number of non-Tesla car models that will use the Superchargers