I think the Irizar ie tram is the best electric bus I've been on so far and IMO comes close to a tram like experience. The VDL Citea electric buses are very good and I've ridden on many of them but I think the Irizar is preferable. I took several rides in Amiens on their new BRT system. It was exceptionally quiet and had lightening acceleration. Even though the seats were not upholstered the ride was very smooth and comfortable. Looks good as well.