I say in this post that the Hillman Hunter joke is a recycled Ford Prefect. Actually that's wrong; the Ford Prefect joke is funny because Ford is sometimes given to people as a first name. Whereas "Hillman"?

Hey, Hillman, how ya doin''?! Great to see you Hillman! Hey, here comes Fiat!

Sigh. Hillman Hunter is the Ford Prefect joke... told by somebody who doesn't get the Ford Prefect joke.