The window is wider than the door it is supposed to retract into. Whoever created the image either doesn't know how a car works or is deliberately hiding the fact that there would at least have to be a fixed, triangular window in the back corner like there is on the current model which looks clumsy.
__________________
135i, SGM, Coral, Sport Package, Auto, Premium Hifi, USB/ipod, Apex EC-7s, PPK Stage II
|