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I just notice in certain countries, the Model S ordering page 19" wheels comes with summer tires. Wonder anyone received their cars with 19" wheels in summer tires, what brand and model are those tires?
That's news to me ! If I had to guess, I'd expect them to mirror the 21" options (Conti Extreme Contact DW, Conti Sport Contact5). The Michelin Pilot Super Sport is not available in 245/45R19.
The Goodyear RS-A2 all seasons are only V speed rated (149mph). The 85D and P85D have a top speed of 155mph so are supplied with Michelin summer tires.