Originally Posted by Autobahn335i
Yes the above is not to reinforce the car or for safety measures. Just to be able to use a 4-point seatbelt harness.
A proper rollcage is normally welded to the chassis, or at least screwed in. Didn't know there were "on-the-fly" removable ones.
Yes and this decreases safety unless it's an ASM design. And even if it is, there are groups that won't allow it on track. Oh and you should have equal restraints for both sides.