Complex sentence: As a result, in March 1983 the last LM/LP-49 tram was removed from passenger service; the newer LP-49 worked some time as trains, where LM-68 and LM-68M were motor cars.
Split into simpler sentences: As a result, in March 1983 the last LM/LP-49 tram was removed from passenger service. Newer LP-49s worked for some time as trains, while the LM-68 and LM-68M were motor cars.