If your trams weight over 50 tons then you are possibly, shall we say, over-egging the pudding somewhat at the design stage? What happened to efficiency and mass reduction? I have seen lots of new trams where it looked like the last thing they were interested in was providing any actual space for *passengers* to sit in them, rather the priority is make them look like the Space Shuttle, and people end up simply standing in the bendy corridors between the carriages, holding on for dear life. So, often more like low-flying Wurlitzers rather than transport. Of course, nice LCD screens with cartoons on, and unbelievably inflated ticket prices. Yay, whoopee.