Kinda interesting. In Canada, the Quattro bike actually has the world "QUATTRO" on the side of the top tube, exactly as in the velospace photo. It has a full Quattro-labelled groupset, though the components are from different manufacturers (Modolo brakes, Suntour gearing, Ofmega cranks and hubs, FIR rims).

I have three in 51 cm. One is original, one is this one I built up with modern stuff: https://www.youtube.com/watch?v=43JuEKRjBWI

So what do you want to know about your bike? It's probably from 1988 to 1990 if I had to guess.