from what i was told alot of options you can choose to get from the factory when buying a new Q50 you get standard with a Redsport or 400R.
Paddle shifters and so on plus the sports+ mode isnt on all standard Q50's im sure the wheels look different plus the 400R kit looks the best next to the LBWLK kit.
im sure there is alot more things that are different and im sure mine has LSD standard rear.
im sure i was told suspension is different aswell and turbos.