Earlier quoted context omitted.
I'd rather have racing-style belts and no air bag. Racing style go over both shoulders, are wider, and are fixed length. There are some horrific crashes in auto racing and the drivers walk away. That convinces me.
I'm an amateur racer, and I can tell you that seat belts are only a small part of the equation that makes racing crashes survivable. Racing seats are built to fit individual drivers, for instance, and the cocoon -- the portion of the frame where the driver sits -- is designed to protect the seat. Additionally, race cars are designed to essentially disintegrate in hard wrecks -- the cocoon stays intact, but the rest b…
A roll cage won't do jack for you if you're flying around in the cockpit smashing into the roll cage. Crumple zones are also ineffective if you're not strapped in.
Race cars don't have air bags. If you're strapped in tightly, the air bag adds nothing.
I've been in a crash where the belt saved my life, or at least prevented a crippling injury. I walked away with a broken nose. A roll cage or a HANS without belts would not have helped.