ever seen VW dump trucks?

I'm thinking that the obvious problem is too much weight over the rear axle, and if they had too heavy a load getting dumped, it might tip this over backwards.from http://www.roadtransport.com/blogs/big-lorry-blog/2010/04/classic-volkswagen-vanswell-ti.html

Kiev subway construction railcars... that's a new variation I've never come across

Makes sense that the easiest way to get concrete into the subway where you need it is with a mixer truck... but I'd never thought about it.. from http://englishrussia.com/