8-4 or 9-3, close enough. Although if you are driving the roundy-round NASCAR, you've got your left hand at 8, right hand at 10 and your right elbow at 2. You turn left for three hours in a big, heavy car and see how comfortable it is.
I've been hearing 9 and 3 for at least a decade now, so I'm not sure how this is news. If you know you're going to crash, by all means don't lock out your elbows in a death grip on the steering wheel. At racing school, I was taught (if you know you're going to crash), to cross your arms on your chest (think Egyptian mummy style).