The Zed's not made for ubertalls. I'm 6'7" and asked the same seat question on here before manning up and getting a Z anyway. I just about fit but the seats aren't wide, low, far back enough really. I did find the manual seat in the non-GT UK car had more room, but not much more.
Once I'm driving i don't really notice it TBH, and after driving the Z I didn't want to get anything else
So basically, it's aftermarket seats or manual cloth Z seats for you my friend
Leeroy...