I think that you are right. My memory of it was farther out, but I got on Google Earth , and I'm thinking that the guy in the MG Midget was driving on Augusta Drive and tried to make a 90 degree curve over the bridge. The steering wheel rim part came of in his hands, and the wire spokes going from the hub cut his palms up pretty bad.
It looks like we may have taken Hawthorne to Augusta to take him back. The more I remember, there were 4 of us, and we were in my friend's 69 Camaro, and all 5 of us piled in the Camaro and took him to his wrecked car. This was about 1971, I believe.