While vehicle does have a broad definition, I think that for “most people”, it is synonymous with the kind of conveyance that people ride in. Police officers say “get out of the vehicle please”. I’m pretty sure that when they encounter a rowdy Mardi Gras goer riding in a wheelbarrow, they do not say “get out of the vehicle please sir”.
> I think that for “most people”, it is synonymous with the kind of conveyance that people ride in.
The article suggests that people riding in (or on, perhaps) was a common use for the vehicle.
The headline could have been evidence of a 22000 year old wheelbarrow like vehicle but I guess that was a mouthful. “Vehicle” is fine.