I agree with what 7 WoW said, a cage and lowered floor is such a better solution, and have seen too many accidents whilst marshalling where an FIA bar is simply not enough, and I know you aren't racing but taking the cage off to improve access at the expense of personal safety is a step too far for me.
Thank you for the further advice. It's not a decision I'm taking lightly and I am still considering which way to go.
I do have the lowered floors already so perhaps my seating position just needs adjusting and that will solve my clearance and head tilt problem. It could be the previous driver has it mounted high I suppose - I'll check.
From what I have read above though it would appear that with a roll cage I should wear a helmet whenever driving the car even on the road?
There are many risks of open top Caterhams
Sit yourself in the car and look at the clearences you have,
You have to draw the line somewhere, and run with what your happy with, some run a helmet with an aero screen, some run Ballistic glasses, some just sunglasses, some run diagonal belt, some 4 point some 6 point, some ar happy with their head being the first thing to hit the ground should they roll other run lowered floors and / or cages.....
After all there's a proven arguement that running a helmet without a HANS device is equally dangerours........ next thing you know Caterham will be offering and aftermarket HALO.....
Everything is a risk you just need to look at them in terms of frequncy of occurance and severity.
I thought it was because your ugly........