The Pininfarina X (sometimes referred to as the PFX) was
a peculiar concept
car which appeared in 1960.
The X's craziest feature was the unusual diamond shape
wheel layout. The single front and single rear wheels
provided the steering, while the two central wheels provided
This layout, coupled with the aerodynamic bodywork, was
was designed to reduce drag and thereby improve both the
performance and fuel efficiency of the vehicle.
Powering the Pininfarina X was a Fiat-sourced 1.1 litre,
4-cylinder engine which produced 43 horsepower.
Pininfarina tried, unsuccessfully, to get various manufacturers
to put the X into production. The main reason nobody wanted
to build the X was that aside from the bizarre layout
which would have surely put some people off buying, the
X also possessed twitchy and unpredictable handling -
which would have put everyone off.