There have been many drinks bearing the name Automobile Cocktail. Two of them are particularly interesting.
One of the delights of the Smoky Martini Cocktail is its accommodating nature. There seems to be no canonical recipe, only a loose ingredients list: gin (or vodka), Scotch (or Irish, blended or single malt), dry vermouth (optional), lemon twist (optional). Here is flavor opportunity broad enough to satisfy the tastes of any Scotch drinker, and even those who do not consider themselves in the Scotch–drinking ranks.