How well do they work side-by-side, as opposed to end-to-end? I'm thinking of a plaza or courtyard rather than a road.... 
They should work just fine.
I will sort out some proper pics tomorrow.

Here is a picture with two of them, chosen at random and uncleaned, popped next to each other.

Once they are painted the same colour they should work just fine.
In fact, I may have a go at a quick scenic piece later, utilising two of them, if I get the time...