I think Chazz is trying to say that "functionality" came before good looks in the "high priority list" (especially with the X6 - cannot say I agree with the X5 though
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The body was designed with aerodynamics and rear downforce as the number 1 goal, if it looked good too when finished then great, if it didn't, then too bad. But getting it to make the car(s) go fast(er) was the main objective and his way of portraying that is to remind us all how fast the cars have been (and still are) as a result.......