Ghia 'Gilda' Streamline X (1955)
Hear that whir? Designed by Giovanni Savonuzzi, the car uses a gas turbine engine. It has no pedals (drivers use a central stick to control forward and backward motion), sounds like a plane taking off, uses kerosene as its fuel, and looks vaguely like an electric shaver. The California-based Blackhawk Museum has a great video of the Streamline in action.
Sir Vival (1959)
Perhaps one of the strangest vehicles ever imagined, Sir Vival was a concept design dreamt up by Walter C. Jerome from Worcester, Massachusetts. Autoweek reports the $10,000 car appeared in an April 1959 issue of Mechanix Illustrated. The car was designed to prioritize safety, at a time when Detroit automakers were more concerned with attracting consumers using flashy designs.
L’Oeuf Electrique (1942)
The "electric egg" was developed by French designer Paul Arzens for his own use. GreenBuilderMedia notes the three-wheeled electric vehicle could reach speeds of 37 mph and had a range of around 60 miles. The egg-shaped design was ideal for snaking around the narrow streets of Paris.
SsangYong CCR-1 (1995)
This vehicle, as highlighted by OldConceptCars and AllCarIndex, was first demonstrated at the Seoul Motor Show. It features speeds of up to 75 mph, a range of 125 miles per charge, and scissor doors.
ItalDesign Machimoto (1986)
Project Machimoto, as ItalDesign describes it, was a rather unique venture. First shown at the Turin Motor Show, it combined a car with a motorbike. It featured a steering wheel that converted to motorbike-like handlebars. It also featured seating for up to nine depending on the configuration.