I really doubt that's going to mine any Bitcoin. Ethereum would be viable with that set up. Though nonetheless, just another rich guy enjoying the wealth and flaunting it to us lol.
So I think it was all included and covered by the insurance company? That was a clever idea but the fact that it was in the car the maintainance, accidents and other factors might put the system at risks can be very serious. Or maybe it is just a marketing strategy.
I don't think so. The article said that he built it himself so I think anything that happens to that mining rig won't affect car insurance.