I have comfort seat in my 2013 d. Friends who are over 6' tell me it still
feels cramp to them. For something that size and not having more leg room.
Just not comfortable to them. They get in a Tahoe or Denai American SUV
and they seem to fit.

In one 3 series had the
sports seats and did not like them. The other 3 has the base seats and to
me are more comfortable. Even the tall friends go if had to ride in the 3 would
rather it be the base 328i over 335i sport.

On the comforts. One issue just can't seem too get right for
me in the X is the headrest. But the comforts in the X
have been the best and worth the money