The final cut of the 8th episode of the Tesla Motors Club Podcast, featuring Balazs Biro, of the prominent Hungarian EV channel Villanyautósok, is now available. You can watch it now on YouTube or listen to it on all major podcast networks.
You can get them to upgrade your main panel but they won't run new cables through the house. Get a professional that only replaces knob and tube for that. I've got knob and tube in most of my house but it's still in pretty good shape. It was required and Tesla wouldn't do it but I'm replacing my standard breakers with arc fault breaker that are knob and tube wiring.
There are more than a few electricians in your area who can rewire your house. The house wiring really isn't Tesla's issue. Your main service panel will be. I would strongly encourage you to make sure that you get a 225A "solar ready" main panel when you rewire the house, along with a whole house surge protector in the main panel.