Personally, I'd rather see the close-up parts than car show photos with with people looking bored, plopped in lawn chairs beside the autos (and I have taken my share of those, too).
Many of us would rather see the entire vehicle properly composed without the bored looking people plopped in lawn chairs or lightly supplemented with a "few" close up images but we must see the entire vehicle. You can do it if you get to the car show early enough! The cars are often parked there while the owners are off to the coffee stand.