The Tatra T5C5 was tram

Tram

A tram is a passenger rail vehicle which runs on tracks along public urban streets and also sometimes on separate rights of way. It may also run between cities and/or towns , and/or partially grade separated even in the cities...

car built by ČKD Tatra in Prague

Prague

Prague is the capital and largest city of the Czech Republic. Situated in the north-west of the country on the Vltava river, the city is home to about 1.3 million people, while its metropolitan area is estimated to have a population of over 2.3 million...

 in the late 1970s and early 1980s. In 1978, two prototypes were tested in Prague and Budapest

Budapest

Budapest is the capital of Hungary. As the largest city of Hungary, it is the country's principal political, cultural, commercial, industrial, and transportation centre. In 2011, Budapest had 1,733,685 inhabitants, down from its 1989 peak of 2,113,645 due to suburbanization. The Budapest Commuter...

. They differed in many ways to earlier Tatra products, most notably that the vehicle was controlled by a hand lever rather than a foot pedal. Between 1978 and 1984, 322 vehicles were supplied to Budapest and, as of October, 2010, still remain in active service there. From 2002 and 2004 eighty T5C5 were extensively modified and now have a modern IGBT transistor equipment. The modernisation of the vehicles also included a complete overhaul of the interior. The type of the modernised trams is Tatra T5C5K.