Interesting..... I cannot pull straight into a parking space (not parallel). I'm always crooked although I feel like I'm straight. Maybe it's because I came from driving a huge 05 Sable.
I have noticed the same problem - I attribute it to the slant of the door top edge making me think I'm not straight, and making that edge straight winds up with the car being crooked...
Oh I'm soooo glad someone else is having this problem. I was starting to think there was something wrong with me. I'll take note of the door edge and see if I can adjust.
There is a whole Thread on this subject, many others are having the same difficulty. Do a Search for "Anybody else having this problem", and you should be able to find it. David (aka Blind Guy)