It may be the future, and your truck may have an electric motor designed to keep down polluting emissions in your underground city, but by jingo that truck had better have a truly immense horn or it isn't a real truck.
It's a pretty impractical truck, though, as I shamefacedly realized after drawing it. There's a reason semi trucks are square. It has to do with stacking stuff so it doesn't fall over, and also to do with the miracle that is the modern forty-foot shipping container. To be honest there's a reason I've usually been indulging in modern designs in this comic, like Bethany's 1911 pistol or those Trabants: I am not the world's greatest at making up plausible mecha designs!
Postscript: Wait, does Liraz count as a mecha design? And if so, does she count as plausible? Better not answer that question.