Must be a foreign thing.
I remember the ashtray's in the '70's cars. They were like a second trunk.
Could fit a whole carton of butts in them.
'67 Firebird ashtray, although most probably used the triangle vent windows in front. 1967 was the last year for those little windows supposedly due to this & littering in general. I *think* '68 GTO's were the only '68's that still had them.