The steering wheel is 350mm diameter
I was looking at getting a smaller diameter one, but that would make gauge vision worse :(
Do you know the diameter of the original GTS wheel?

The wheel is just ok in terms of hitting my thighs - no real issue getting in/out.
An extra inch or two clearance would be perfect, any less and it'd be a pain.

Good advice on the sport seats

Love the advice to GAIN weight!