Please make sure to wear a helmet with this roll bar!!!
Or at least put padding on it - otherwise it makes driving more dangerous than without.
It looks as it is right behind the seats. A simple rear ending might kill you.
That´s why helmets are mandatory on race cars with roll cages.
Yes I always worry when I see people driving cars with unpadded roll bars and no helmet. To be honest, it seems to me like they are trying to mitigate a very small risk, that of rolling over, by introducing a very large risk of incurring head/brain damage in an otherwise perfectly survivable impact.
Unless one is wearing a properly-tightened 4 or 5 point race harness it's very easy to underestimate how much a body will move in a crash, and in my experience a race harness restricts movement so much that people tend to slacken them off a bit.