Sorry, in my part of the world a pickup truck more often than not is just called a car, with the word "truck" usually reserved for larger cargo-carrying vehicles.
Road signs in California for weigh stations will say something like: this lane, trucks only (no puckups). Car is used to mean either in most conversations, so I knew what you meant. I liked your analogy and found humor in the fact that the answer to your question was in a way hidden in your question. I intended to answer your question and share the humor I found but I was short on time and instead my comment looks snarky.
Sorry, in my part of the world a pickup truck more often than not is just called a car, with the word "truck" usually reserved for larger cargo-carrying vehicles.
This page about Car Classifications also mentions pickup trucks: https://en.wikipedia.org/wiki/Car_classification
I can't edit my earlier post, but assume I meant "vehicle".