Luckily I had a chance to take an ivory/blue tram that stands out from regular red+white/gray Vienna tram cars. It's a Badner Bahn train operated by the Wiener Lokalbahnen, which runs between Oper and Baden, a spa town located south of Vienna. When I came to Vienna for the first tie in the 90s, I rode this train all the way to Baden. Its seats have tables and look more like a suburban train rather than an urban tram.