If you are personally responsible for the oil crisis. When you pull into a gas station the attendant jumps up and down with glee. You count your cylinders by the dozen. Extra room in hood for Clydesdales. Fuse lighting provides pleasing glow.
High beams induce photosynthesis.
When the name of your car is high on the food chain. When you don't notice speed bumps. Rear wheel drive. When your car has a doorbell. When you have to specify which backseat.