The Chrysler Maserati TC had a germicidal sanitary disposable clothes in 1991
The Porsche 356 had a small vial of glycerine to drip into the door locks to keep the tumblers from freezing
The Mclaren F1 had titanium tools in a kit under the hood. Like anyone would use them on a Mclaren!
The Volkswagen simple folding jack, known as the widowmaker because it regularly buckled under the cars weight, of the 5400 lb phaeton it was standard equipment on
Source: 0-60 Magazine Winter 2011 issue