+1 on the lower back pain, I'm 6'2" and I too lower the seat all the way in every car i drive. I hate looking out through the tint strip. I do notice with the seat all the way down and the back reclined my lower back hurts within 30 mins. Thanks for the great discussion and for now knowing its not just me :-)
2012 535i, April build, Space Grey, Oyster Interior, 19" M sport rims/tires, premium pkg, premium sound, side/top cameras, heated seats, comfort access, ceramic controls, OEM spoiler, painted front reflectors, 35% tint, rear Fog lights, coded to my liking.