My folks had a '61 wagon. I had a 66 convertible. I think most of the safety hoopla was primarily in Ralph Nader's mind. Early models did have an issue with a sway bar that wasn't up to snuff but that got fixed quickly. I never had unsafe handling issues with mine and I drove it as a teenager. It was my first car.I had two of the Corvair's My first wife had one when we married YELLOW and I had just bought a MARRON one.
We drove them for years - I never noticed any "unsafe" handling - I just never drove faster than the limits!