Audi 'Q' Meet Evening

2nd Sunday of the month;

Officially, the model name was simply "Quattro", although the graphics on the car, confusingly, refer to the four-wheel drive system and use a lowercase "q". The word "quattro" with the lowercase "q" is used to refer to either the Audi AWD system, or any AWD version of an Audi automobile. To avoid confusion, it is also commonly referred to as the Ur-Quattro (the "Ur-" prefix is a German augmentative used, in this case, to mean "original" and is also applied to the first generation of Audi's S4 and S6 sport sedans, as in "UrS4" and "UrS6").

Adding further complexity to the issue is the fact that, within the last decade, Audi has retroactively changed all references to the model to lowercase (as can be seen on the official website's historical gallery), to match its current branding scheme and copyright. While Audi now states that "quattro" must always be written fully in the lower case, all original documentation, promotional materials and press released during the model's actual production period use the uppercase format, which is still the usage of choice for hobbyists and writers not affiliated with Audi.

Taken From: http://en.wikipedia.org/wiki/Audi_Quattro