Its not a related to chemistry jokes and not very funny, but i believe its good. The bad ability of the drivers of that age is known and the joke is related with this period of time:
A car is running with big speed(For that age big speed means very slowly for our age) next to a horse that has a man on its ''shoulders''. The horse is also running fast as the car and the man has lost control of the animal.
Man in Horse: Are you crazy? My horse is afraid the car, you 'll kill me. I have lost control-stop your car now.
Driver: I've got the same problem