You may think every Japanese citizen would know the meaning of Itasha (??), however as this video explains they do not…
The word Itasha is a word that consists of the words Itai (?) and Sha (?), meaning Painful and Vehicle. Painful is used in a way that it means painful for the wallet. The word is also a pun on Itariasha (?????) which is shortend into Itasha (???) and means Italian Car. Note that the two words are written differently but pronounced the same!
So that explains a lot why all those interviewed people did not know the true meaning of Itasha!
BTW: Itasha is getting bigger and bigger… This will be the next major export style from Japan!