Hi Sergske,to fully open the door you need a little less than 2 foot,ive have been in a situation where ive had far less,and you can get in with the door half open,but you have to hold the door so it dosent fly upwards.The car is far more usable than most large 2 door coupe so its not a problem.
As for speed bumps and irregular pavements,ive been places i cannot go in my 997 turbo because the short overhang and suspension help,sometimes you have to ajust the angle of attack,but not a problem