Width of 1 series with driver's door open?

[dave1409]

I am thinking of buying a second hand one series, probably on a 13 to 14 plate. Does anyone know the width with the driver's door open?
I know it isn't a huge car but am not sure if I could easily get out. I assume the 3 door is a bit wider than a 5 door with the door open. My house was built around 50 years ago and the driveway is quite narrow.
I currently have a MINI Clubman and it is quite easy to get out but I do have to be a little careful. It will open to the first stop and that is fine.
I asked the salesman about the difference between the 3-door and a 5-door wrt width with a door open. He just said "Oh, the 3 door will be fine" but that may be just because I am going to test drive one tomorrow. It is too far for me to drive it home and back on the test drive . I am fairly small so do not need to open it to the final stop

Many thanks to anyone who can help,
Dave

[dave1409]

OK, replying to my own post after a lot of searches:

I found this site http://www.automobiledimension.com/parking-dimensi... that should tell me what I need to know and looks like it works for most cars.

Dave

[dave1409]

And again - am I going insane or something?

I have now put a deposit on a 5 door so I am not too worried about this now.
I knew they would both fit but I would have had to be much more careful when getting in or out of a 3 door when stopped next to my house.