It's actually illegally parked, because it's within 10 metres of a road junction (you can see the road junction in front of it). However, that's not why it's badly-parked. It's badly-parked, because it's RIGHT IN FRONT OF OUR DRIVE so it's REALLY AWKWARD to get out or in.
Today, when my father-in-law visited, he had a hard time turning into our drive without hitting this car. Luckily, he managed to avoid it. Unluckily, he didn't manage to avoid our wall:
There ought to be a law against parking like this — say, point 243 of the Highway Code...