patina?

i think so, maybe a bit of definition 3?

patina1
/ˈpætɪnə/
noun (pl) -nas
1.
a film of oxide formed on the surface of a metal, esp the green oxidation of bronze or copper See also verdigris (sense 1)
2.
any fine layer on a surface: a patina of frost
3.
the sheen on a surface that is caused by much handling
Word Origin
C18: from Italian: coating, from Latin: patina ²

This is Luca's.
I bought it for him while he was still @ nursery.
Nursery rules said that you weren't allowed to take your own toys in, but of course, Luca being Luca, he smuggled it in anyway.
Unfortunately a bigger boy spotted it and removed the tyres - lesson learned...
He still has it though and still loves to play with it :-)
As you can see (Ha!, maybe not :-)) it's an Alfa Spider - we do love our Italian cars in this house :-)