I think they appreciate odd objects more than a lot of weight on a bar from my experience. My wife regularly fluctuates from thinking my 1rm is 600, 700 or 800lbs, and she’s seen me pull it in a meet. To her, it’s all just “heavy”. But throw a car on an apparatus and nothing is lost in translation.
Oh, well yeah, I can see it there. That sounds really spectator boring, haha. Especially no stones. That tends to be a big crowd draw.
As much as I hate it, I think the truck pull has a big crowd draw. Stones too. Some sort of implement deadlift (typically car, but keg loaded crate is cool too, or wagon wheel) for deads, implement Viking press and then maybe a tire flip would probably be fun for fans to watch.