Complex sentence: The Incentro trams were designed and built by ADtranz for the Tramway de Nantes under the designation AT6/5L during 2000-2001, the AT6/5 is almost identical to the Nantes model built a half a decade earlier but 3.4 metres shorter.
Split into simpler sentences: The Incentro trams were designed and built by ADtranz for the Tramway de Nantes under the designation AT6/5L during 2000-2001. The AT6/5 is almost identical to the Nantes model but 3.4 metres shorter.