Joao, the working culture in the UK is more similar to the US than it is continental Europe.
Having worked in all three (and the middle east, though that is not relevant here), I would have to disagree with the above.
I have found the vast majority of UK colleagues to have a different perspective on the workplace, compared to US colleagues. NB: I am not judging them against each other as being superior/inferior.
Equally whilst corporate governance in the UK is nearer to the US, than in some European states, I often found US senior management to have a more ruthless approach than their UK equivalents.
In terms of social values, which underpin the workplace, I would see also significant differences.
So, at least based on my experiences, it is completely logical not to compare the US and Europe.
However, this is my opinion and I respect differing views, too.