The notion of a concept is so enshrined in the automotive world that it's almost hard to believe that there was a time before they existed. And yet, before 1938, no one had ever thought of making one.

Luckily, GM had a visionary on staff by the name of Harley Earl who decided that what the company needed was a showcase of coming technology, with no actual requirement for it to become a real car.

The result, in 1938, was the Buick Y Job. Complete with push-button doors, power windows, and a power retractable top, it was years ahead of its time, just like it was intended to be.

Based on a Buick Century chassis that was modified by Charlie Chain and styled by George Snyder, Earl wanted it to be lower, longer, and sleeker than its contemporaries and ended up making a car that looked incredible without alienating the public.

Leno takes his usual walk around the car, looking at it in detail, and then takes it for a ride with VP of Global Design at GM, Michael Simcoe.