Personally I think even British roads are too wide, let alone American ones. Far too much encouragement for people to speed through urban areas.
The only people I've ever really seen get road design right are the Dutch, and occasionally the Belgians. Allowing all traffic to flow safely more than has its benefits, particularly with regards to the fact that it discourages people from unnecessarily using cars for short journeys. I've never seen a traffic jam in the Netherlands.
The Veyron is a pointless car on the road because you'll only ever be able to even use half of its potential in short spurts on the Autobahn, which one could just as easily do in any other very fast car, be it a Lamborghini or a Ferrari or even some Fords. On the track it might be a laugh, but lets be honest, how many Veyron owners take their Veyrons out on track days? Maybe one or two occasionally, but really, most Veyrons are just vanity pieces for rich, insecure people who quite often probably wont have the slightest interest in cars beyond how much it costs and how fast it can go on an empty stretch of straight road so long that you can't see one end from the other because the horizon gets in the way.
It also doesn't help that when I think "Veyron owner" my first thought is of some sleazy guy who comes up to you in the street and starts commenting on your breasts and then hurls verbal abuse at you when you run away. That is the guy I imagine owning a Veyron. That guy is not just seriously uncool, he's something that can only be described by a word so "obscene" that I am sure I would immediately be banned from this forum if I tried to use it.