The BMW PAS Concept, soon to be BMW 5-Series GT, will officially bow at the Geneva Motor Show. Until then, Chris Bangle is happy to tease the Bimmerphiles at BMWBlog with this "teaser" shot.

This was a preview event for the vehicle and Mr. Bangle decided to show us all up and put his real butt in the way of the car. You can see the hatch-type thing open in the back, the pillarless doors and the gyst of the front. As for the rest, you'll just have to watch this video and see if you can figure it out. [BMW Blog]