The Series 4024 is the four-part version of the electric talent for the ?BB. With 140 sets, these vehicles represent the backbone of ?BB's public transport network throughout Austria. They are available in all areas with greater traffic (S-Bahn Vienna, S-Bahn Tirol, S-Bahn Styria, S-Bahn Vorarlberg, S-Bahn K?rnten up to and including Lienz, Salzburg - Saalfelden, Pyhrnbahn, Linz).