I grew up in the wrong continent! I got 12/19 for both. I'm only NOW becoming familiar with classic American V8s.
If the test had been for vintage (1970s/1980s) German motors, may be with some Italian motors thrown in, and some Brit cars, like Ford Capris and Rover SD1s it would have been alot easier for me!
Marquis, that's pretty respectable considering. Jay, that's a very nice list. I'm jealous.
I'll add the non-V8s I've owned/worked on:
slant 6
Volvo 2.1 OHC
Renault/Volvo/Peugeot V6
Ford Cologne V6
Ford Lima 2.3
I hasten to add, for me, the passenger car engines have always been a hobby, so far I've not laid a hand on one professionally, but that may change one day.
I left out the non-automobile engines. Maybe we should start another thread for that.