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

Its seem nice if they can accepting bitcoin for payment. Many country including my country, can not use bitcoin for payment because regulation.
But if we want to buy automobile with altcoin, i think we can convert our profits to fiat first before buying car in dealer