Mine attached, i use a program called display fusion to get 2 images for my monitors. Uses a lot of mem so i dont leave it running in the BG after it has made the desktop BGs for me.
the e90 (current 3series) rear of the cabrio and coupé (so e93 and e92) look quite similar to the audi a4 (B7) one. the latter one has been on the market for almost two years when the 3series coupé was released.
edit: well, not really. anyway, the lexus gs looks just like the 3series from behind. bmw really does not have innovative design there.