This is an interesting question.

1 BTC, in the future, will be more than the dollar amount of a Bugatti today.

But, what will happen when we have a bunch of bitcoin millionaires?
Will it drive the cost of fancy cars up?

But, but, as we see society crash and burn around us, and EVERYONE hating the "rich" will such super-cars be safe to have on the roads? Especially as the roads deteriorate. ... and this will lead to fancy cars dropping in price.

So, 1 BTC = 1 Bugatti, but will you want that trade?