I did not recognize any of the game titles. I was around then but I did not realize how different the titles on the C64 were to those available on Sinclair and Acorn computers.

Is this a representative selection of titles from the era?

I would be very interested if there was any correlation between home computer brands and automotive brands. Commodore was marketed in the UK in a way that brings to mind Vauxhall cars (GM).

It is too late to do the data now but in my mind Sinclair was more like Ford UK and Acorn more like a properly engineered German marque, e.g. Mercedes.

Much like you would never put G.M. parts in a Ford but you could put a Ford or GM engine in some other car, e.g. a Lotus sports car, it seems that there were reasons beyond hardware limitations for why some titles never crossed over. Only Commodore users got certain sub-genres, e.g. those text adventure things.