Blimey!
I'm 6'2" tall, and circa 20 stone and the ZT is the only car i've bought where i've had to think about the driving position. Normally i set the seat and steering wheel to the maximum it'll give and "live with it" - not so with the ZT, the adjustment goes beyond my ideal driving position so i actually have to think about my ideal and set the seat/steering wheel accordingly. Drivers seat is height adjustable too which give me ample headroom even with a sunroof - factor in the height and reach adjustable steering wheel and the large range of adjustments on seat location and back rake and i'm very surprised that it doesn't accommodate you. It's the best car they ever made in this regard i reckon. The closest i've found is the VW Passat i have as a company car, but the ZT beats it in terms of headroom ('bout the same space, but the ZT has a sunroof fitted)
Or are you talking about the back seats? I agree completely here, back seat space is indeed an issue with the ZT.
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For the record, i consider myself right on the upper size limit for the MGF, if i were any bigger, or the car any smaller i'd not get in it - and even then my driving position is compromised (although very comfortable).
ZR is worse than the F, there is more room and more adjustment but i'm either reaching for the wheel or have my knees up round my ears - i can't seem to get comfy in a ZR, so i have never owned one - despite testing several. I went in to buy a ZR Express, tested a 105, 120 & 160 (only the 160 was an Express). Also tried a R25 Steptronic and a Streetwise. Finally I came away with a ZS 180, entirely down to the driving position. Big difference to the ZR 105 Express i went in to buy originally, but i'd rather be skint and comfy than cramped and rich! :lol:
ZS is also excellent, not quite as much adjustment as the ZT, but not too far away and the driving ergonomics are absolutely spot on, everything literally falls to hand - the Mk1 may have been a bit dated inside, but i really can't fault the feel from the drivers seat, it just works perfectly.
So, i'm a bit puzzled - i'm kinda on the big side, being at, or just above the 95th percentile judging by my experiences with the F. But if you find a R75/ZT cramped then i must be kinda small next to you. It could be down to the way i'm put together i suppose, some people are long in the leg or body, i'm kinda even. I can see that if i was long in the leg then i'd struggle with the F for instance.
Anyway, sorry for the off topic spiel, i'm genuinely puzzled!