Pontiac XP-400 Bonneville

Pontiac Bonneville X-400 -

The Pontiac Bonneville X-400 was a concept car built in 1964.

The X-400s represented the outer limits of Pontiac-style, luxury, and performance, with supercharged Pontiac V-8s, custom interiors, and enough one-of-a-kind features to impress even the jaded enthusiasts of today.

They boasted such high-tech goodies as a rain-sensing, automatically operating convertible top, driver-operated exhaust cutouts, and full gauges, right down to custom but stock-appearing 160-mph speedometers.