Based on a really informal look at these sorts of drawings, seat cutaways only show up about 25% of the time, I’d guess. Sometimes even the same company can’t decide how important knowing what’s inside the seat is. Look at this:

Volkswagen figured Beetle owners would be curious about the magic happening inside the rear seat at least, but Bus owners?

I suppose they prefer the mystery. Usually, the seats are either shown solid or disappeared to make visual room for the complex stuff they’re surrounded by: Really, I’m pretty sure no one is looking at these to figure out if there’s such a thing as a headrest carburetor and, if so, what it does. Still, I like the detail Ford put in that 1961 diagram. Now the real question: do any of these show what’s inside the tires? https://www.amazon.com/Cutaway-Colouring-onwards-makes-models/dp/1785210696/ref=sr_1_3?crid=2XYLG0U6SUB3S&keywords=automotive+cutaway+coloring+book&qid=1669129175&sprefix=automotive+cutaway+coloring+book%2Caps%2C84&sr=8-3 https://www.amazon.com/Classic-Cars-Cutaway-Coloring-Book/dp/B08Y4LBNP2/ref=sr_1_2?crid=2XYLG0U6SUB3S&keywords=automotive+cutaway+coloring+book&qid=1669129175&sprefix=automotive+cutaway+coloring+book%2Caps%2C84&sr=8-2 And rust, just for David. I’m always saddened at how for an increasing amount of vehicles these days, when you open the hood, you see…another hood. That is, a plastic cover over the engine. And one that often has to be unbolted if you want to remove it and actually see your motor. Maybe it’s the iphone-ization of things, attempting to remove the machine nature from our consciousness and replace it with that of a mysterious artifact… Not in glorious hand-painted color though. It’s based on the CAD data now. I’ve done a few technical illustrations for workshop manuals. I always loved cutaways. Still do. They are works of art, and I’d go to a museum to see an exhibit of them. For seeing that it is actually caramel inside the tyres, on a drawing where they ALSO cut the seat, we will of course have to turn to the Citroën DS: https://i.pinimg.com/originals/f6/6b/32/f66b328cc567fa80d42310fa75583788.jpg BTW the 3rd last image.That has to be a SAAB right? https://i2.wp.com/www.curbsideclassic.com/wp-content/uploads/2016/02/Ford-1959-223-six.jpg

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