[pruettfan]

6' sit more vertical than most so more like a proper track position and day to day there are no issues at all. On track my helmet touches the headliner early in the session, after I get settled a little I barely touch the headliner. For the track I would much prefer to have a proper track seat and to sit 3-4 inches lower so that is my plan when I get to the point that I will do more track than daily with the M2. My car doesn't have sunroof BTW.

[Old Geezer]

I'm a long-torsoed 5'11" (only 32" inseam). Wearing a helmet, I can't sit upright in a BMW equipped with a moonroof. All of my cars are slicktops for this reason.

[ZPrime]

6'3", 285 pounds, ~35" inseam (a 34 is slightly too short, a 36 needs to be hemmed).

No sunroof, helmet works - was one of my qualifying tests before buying the car. I passed on the RS3 partially because I couldn't fit a helmet in it due to the mandatory sunroof in the US (and because I couldn't use a Schroth Quickfit harness in it since the wingback seats have no belt holes).

I have a 6MT too, no problems with clutch. The steering wheel adjustment sucks though. I want to have it up a bit higher (to allow more leg room for clutch and brake), but if I adjust it higher, the plastic cowl on the top of the steering column covers up the bottom edge of the LCD, at least with the way I have my seat adjusted. It's super annoying.

[atlas]

I’m 6ft, and have a sunroof. With a helmet, I can’t sit straight up without hitting the roof. So I either lower the back angle of my seat slightly, or lean a bit to the side. Annoying but not a huge issue and it’s soon forgotten.