Sofia 2681 Skoda Solaris on bul. Slivniza. August 2015.
Due to a complete reconstruction of bul. Slivniza, which passes here the railway line Sofia-Pernik on a bridge close to the station Zaharna Fabrika, the buses have to operate independently of the overhead wires. Only the new Solaris buses can do this, so line 6 is operated only by them. Photo by M.Koblischka #m.koblischka@t-online.de