I wounder how many engine manufacturer operate in the 1920 and how many they are now.
It seams that it is always turning around the same name, I wounder if it is one huge casting facility somewhere lost in the world who do the casting block for everybody, and each brand put its final touch!
Just kidding, I don't think so, but it can happens in the futur and it will make economical sense. Allready it is difficult to to diferencie a car from an other, Asian, Euro or US seams quite similar. Driving one is diring them all.
Before my Chevy, I used to have a Packard four doors 1949 model, height cylinder in line. The torque was so huge that you didn't have the need to change gear, if you were not in a hurry. Simple, heavy, didn't handle very well, but it was quite an experience. Opening the hood was a treat!