The postwar boom in automobile ownership, plus the advent of interstate (defense) highways meant Americans were taking to the roads in droves. This short covers all of the headaches and innovations involved, cleverly so.
Narrator John T. Smith may be best known as the evil scientist in the Bugs Bunny short, "Water, Water, Every Hare."
One of the few "blackout gag" which didn't utilize Robert C. Bruce as its narrator; John T. Smith is the uncredited narrator instead.
After the man siphons gas out of the car, he begins making car start up noises. This is Mel Blanc imitating Jack Benny's Maxwell.
The cloverleaf highway gag would be used in several WB animated features over the years. Actual such intersections first made their debut in the late 1920's, though have been replaced by other road designs in later years.