The first three Nr II class trams were delivered to Helsinki City Transport (HKL) in 1983, followed by an additional 11 in both 1984 and 1985, further ten in 1986, and the final seven in 1987.
[1] In 2006, tram number 80 was rebuilt with a new 6.5 m (21 ft 4 in) low-floor midsection, built by Verkehrs Industrie Systeme.
Experiences with the prototype lengthened tram were positive, and the rest of the Nr II class were similarly rebuilt from 2008 until 2011.
[3][4] On July 21, 2003, one of the Nr II-class trams derailed at high speed in the junction between Mannerheimintie and Aleksanterinkatu in central Helsinki, and collided with a motorcycle, which resulted in the death of the motorcyclist.
[8] In 2005, as a result of the accident, HKL redesigned the windshield of three Nr II class trams, adding a large vizor that contains an air conditioning unit, which also shields the driver from direct sunlight.