Well just like all reviews some facts are wrong.
I have covered 150 miles at the wheel of the X635D and my findings are somewhat diferent.
Firstly the rear seats have "Plenty of room for 6ft people", I set-up the drives seat and them got in the rear ( I am 6' 1") and had NO problems at all, width wise it very roomy.
I found more people wanting to stop and chat about the car than refer to me in any way with the use of "the Finger".
Economy was 36MPG in out of town driving, which is very good for a new car with 20 miles on the clock from my test start.
I found no problems seeing out of the rear window, and the large rear veiw mirrors were great and caused no wind noise up to 80MPH.
I have ordered one for september, Deep Sea Blue with Oyster leather and can not wait til it arrives.