'58 three duece air cleaner for 58 Impalla.

[Verne_Frantz]

Yep,
It's called the vacuum ash tray. It has a hose with about a 1/2" id through the dash into a cannister mounted on the fender well. There's a fitting and hose from the engine to the cannister. There's some sort of "doohickey" in the ash tray to open the vacuum, then WHOOOSH, goes the ashes........AND butts, lit or not!
Now, who wouldn't LOVE to have a smoldering can of butts under their hood.....

No offense to Pantera's buddy, but most '58s get restored with ALL the gee-gaws. They look like they drove through JC Whitney with a magnet.

Verne