I'm just curious when can I start buying my dream cars with altcoins, I mean can huge automobile companies like Toyota, Ford and Nissan start accepting cryptocurrency as means of exchange
You can do it today if you have enough BTC,for instance if you live in USA there is some car dealers who will gladly accept your crypto.For Europe it seems to be only one one car dealer in Italy for now,but somehow it seems to me that this information is incorrect.
However it will take some time that payments with cryptocurrency become commonplace practice,maybe in next 5-10 years you will not ask such question
In order to carry out quite large purchases, it is necessary that there be an intermediary through which the crypto currency will pass. Of course it will not work for free, but with fluctuations in the rate this can be beneficial.