Classification discretion!
The door and where it latches are the same pillar so it's considered the A... Just because it opens doesn't mean they're separate pillars. Think about a "regular" vehicle. The edge of the door isn't consiered B while the door frame is considered C. The whole thing together is considered A 
B is at the very rear.

B is at the very rear.

Jordy is correct, and theres not much cargo room behind the seat either.



