I started a reply then it got cleared off. But I exposed my stupidity on the 50s-70s History quiz. I got some right, but my true grade will not be released. The engine ID #2 quiz went good, but I forgot the numbers, but I was just able take the others:
I got 7 out of 17 on engine ID #1
I got 38 out of 48 on the '60s Non-GM ID
I got 40 out of 56 o the 60s GM ID
And I got 38 out of 48 on the 50s ID quiz.
Than again, at this time of night, I'm not on all cylinders.