Welcome back Mythbusters!
My biggest problem with the car vs motorcycle for “greenest” mode of transportation, comes from understanding the California Emissions standards. Cars are subject to them, but motorcycles obviously have different standards. If cars from states that don’t require the stricter CA emissions criteria were used, the results might be very different.
Love that RPGs really only destroy what is in front of them, and that a bullet can set one off, but only if the RPG is already armed. I think if I were in high school today, I might be dreaming of attending New Mexico Tech.