1971: Go ahead and set off an orange smoke bomb in your 1971 Chevrolet Impala

The General put louvered decklid vents on most of its 1971-model-year North American-market cars, from the Vega all the way up to the mighty Eldorado. This allowed a powered flow-through ventilation system to whisk cigar smoke, flatulence and carbon monoxide out of the passenger compartment and up through the decklid, even when the vehicle wasn’t moving. Here’s a television commercial for the 1971 Chevrolet Impala, showing how even a vivid orange smoke grenade couldn’t hotbox up the new big Chevy for long.


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