The Librands on my car is just high enough to be above my head height. My seat is lowered by removing the wooden spacer between it and the floor, this being done for my preference not to suit the rollbar. I prefer the slightly lower seat height.
It fits on a frame bolted to the chassis and wheelarch through the rear shelf area. The hoop and triangle support bolt onto this base frame and can be removed easily if needed...12 bolts I think.
Fitted by Lawrie at Williams in a day and a half.
The base frame slightly impairs space for luggage but not really an issue unless you have fitted Hills Alive bags! Modified Hills Alive can be obtained.
A good decision to fit....peace of mind plus a stiffened rear end.
