That’s one of the worst crashes I’ve ever seen.
Yes, the F3 cars don’t have the halo head protection like the F1 cars.
“Thats one of the worst crashes Ive ever seen.”
Fernando Alonso Crash - Australia 2016
It is amazing Alonzo walked away from this crash. It was a high speed straightaway going into a sharp corner, similar to the F3 crash.
https://www.youtube.com/watch?v=vT17vWFkl_w