Audi ni kratica, izvira iz priimka Augusta Horcha:
"Horch!" in German means "Hark!" which is "Audi" in Latin. The idea was enthusiastically accepted by everyone attending the meeting. It is also popularly (but incorrectly) believed that Audi is an acronym which stands for "Auto Union Deutschland Ingolstadt".

BMW, abbreviated for Bayerische Motoren Werke or in English Bavarian Motor Works.

The acronym "SEAT" stood for Sociedad Española de Automóviles de Turismo (Spanish Corporation of Touring Cars).

FIAT is an acronym for Fabbrica Italiana Automobili Torino (Italian Car Factory of Turin), and it also means "let there be" in Latin.

Vse imate na Wikipedii: http://en.wikipedia.org/