Pretty sure Jeremy Clarkson drove it. And the rich guy who bought it did.But hypothetically, with enough money and/or by knowing the right people, they could drive a Miura to work.
The GT90, though... you could have all the money in the world and be best mates with the Ford board, and you'd almost certainly still not be able to drive it, and definately not on the road. A car you could, even though the chance is tiny, drive to the pub in can be cool. A car in which you definately can't drive anywhere meaningful is never cool.
It was detuned to 540(?) hp though.