Roads in Denmark aren't really that small, they're huuuge compared to the UK.
Roads in Pakistan are ridiculously spacey and still filled to breaking point (I guess Pakistan is pretty much like, say, Mexico, really, in most ways).
(At least in the "outside world", in here they're mostly empty no matter what the time of day is.)
I'm guessing the main problem with a car like that in Europe would be that it uses way too much petrol.