I simply cannot believe that on a car with such great design features in most other places that the easiest way to replace a headlight bulb is to take the unit out!
Although of little consolation, the A2 is by no means the worst offender. I just read the Ford Ka requires removal of the front bumper and the headlights. Typical cost for a main dealer to replace both bulbs is £150 (if you'r taking the bumper off it would be crazy not to do both)
Cheers Spike