Hot Wheels race; fast; that distinctive zipping sound of the tiny wheels on the plastic (rubber? rubberized?) track, a sort of single-tone swoop rather than a Doppler. (I don’t know; I’ve never been Doppled.)
But Matchbox? They move, but that isn’t their telos. They are to be seen. They are collectable.
Be calm, be cool, be collected be collected be collected OOH!
I had both, mixed together (like the Barbies and G. I. Joes). Corgi too. (Dogs of war?) A miniature automotive ménage à trois.
What will I see when I see them?