Sporveien awarded CAF a contract in June 2018 to supply 87 five-section bidirectional LRVs with an option for 60 additional vehicles.
Each 34.16m-long, 2.65m-wide LRV will accommodate 220 passengers with four wheelchair spaces.
The 18m-long mock-up will be used to test, quality assure and verify interior components and systems prior to the start of production.
The first two SL 18 vehicles are due to be delivered for testing next year.
The SL18s will replace Sporveien’s fleet of 40 SL79 trams, which were introduced in 1982, and the troubled fleet of 32 SL95 LRVs supplied by Ansaldo/Firema in 1998-2006.