Just as a layman watching the video, I agree it was a miracle he wasn't killed.
That was a VERY nasty crash.

It does demonstrate just how far motor racing has come in terms of safety, even since the 70's/80's, let alone when these cars were produced.

I take my hat off to the drivers who still race these cars to their full potential. They must have (huge) balls made of steel!

I hope the driver makes a full recovery.