It's anywhere from 21 to 96 tonnes depending on species and gender. Assuming average weight ranges. Writing that a tram weighs as much as 30 rhinos is about as useful as writing "quite a lot"...
About the same i guess. A lighter tram probably has a shorter braking distance though. And in relation to other vehicles 96 tonnes is a lot more kinetic energy and damage. But that's not really the point is it? The gist is; that this thing is heavy and moving at speed, so don't get in the way. But the way they have chosen to describe that, is hilariously convoluted and imprecise. Especially because most people, me included, have no concept about how much a rhino weighs, much less 30 of them...