http://www.bbc.co.uk/sport/0/football/29624410Great article on BvB too.
Don't the german stadiums have standing spots though? Which greatly increases capacity?
All the English one's are all seaters. Which could be why the germans all seem bigger.
Just a possibility.
There was talk of testing standing areas in English football a while back, I for one would love to see this happen.
EDIT: Found this on the BvB wiki "and 65,829 seated spectators for international games" so they have 15,000 standing, damn, i bet it gets crazy in there lol