[QUOTE=nicknaz;13376045]z4z4z4's pic I think is a good illustration of that plane going from top of suspension to top of roll hoops. I can't get that clearance no matter how I sit and I think from that pic z4z4z4 doesn't have it either
I wondered why that plane mattered and not just the broomstick test and got my answer / reminder from one of our older threads where a Z4M coupe rolled
YIKES!!!
That is serious evidence to make you think twice.
Cobra owners, please don't try to enter any cca events!
Your forehead penatrates the plane from your long hood/roadster configuration suspension to the top of your roll bar.