+1 on the bar, +1000 on the padding. An unpadded roll bar is a very substantial hard object ready to whack you in the head at 30 mph in the event someone hits your car at the right (wrong?) angle. Happened to a buddy of mine that got rear-ended sitting at a yield sign waiting for traffic to clear. He's okay now but had a headache for a couple of weeks and had to visit the dr. more than once -- and that was a low-speed hit.