The 7500 is a unique prototypetramway, nicknamed Caroline[1] or Eurotram 7500[2], of the Brussels Tramway Network. Built as a PCC-type streetcar, it is one of the first articulated tramways in the world. Called PCC 7501 at its creation in 1962[3], as the first of the 7500 series, it is the only tramcar of the STIB network that was not converted to series 7700 by the addition of a second steering, thus it always stayed non-reversible and it was renumbered to 7500 in 1975[4]. Its uniqueness comes from the fact that it originally held three small rear doors, at the very end of the second car, instead of the usual two, and no doors at all at the front of the second segment. Renovated and preserved at the Brussels Tram Museum[5], it features a 1980s blue and grey interior with tables in front of the seats[6].
The PCC 7500 'Caroline' is quite old, battered and worn, and nowadays rarely runs on the network, on particularly limited occasions.
^"Bruxelles. La fin des PCC 7000" [Brussels. The end of the PCC 7000s]. mapage.noos.fr/transports.christobus (in French). 12 February 2010. Retrieved 18 June 2022.{{cite web}}: CS1 maint: url-status (link)
^van 't Hoogerhuijs, Herman (1996). Trammateriaal in Nederland en België (in Dutch). Dijk en Waard: De Alk B.V. ISBN90 6013 948 8.
