f700
Click to enlarge

Toyota’s 1/X Concept is pronounced one-Xth, not one over X. The X also does not mean 10, instead 1/X means the vehicle is only “1/Xth” the weight of other vehicle in its class, whatever class it may be. It represents a new idea of what it means to be environmentally considerate.

This particular 1/X Concept car shown at the 2007 Tokyo Motor Show takes the current Toyota Prius as a basis of comparison. It maintains the same interior space with that of a Toyota Prius, but only weighs 420kg, which is one third the weight of the Toyota Prius. The result is a target of double the fuel efficiency of the Toyota Prius.

This reduced weight is thanks to a light but highly rigid carbon fiber reinforced plastic body frame. This also allows narrower pillars for better visibility from inside the cockpit.

The 500cc hybrid powertrain is a combination of a FFV (Flexible Fuel Vehicle, capable of running on a mix of gasoline and ethanol) combustion engine and an electric motor hooked up to batteries with plug-in charging capability. This hybrid system is located at the rear of the car under the rear seat bench, effectively giving the car a midship rear wheel drive configuration.

More photos after the jump.

f700
Click to enlarge

f700
Click to enlarge

f700
Click to enlarge

f700
Click to enlarge

f700
Click to enlarge

f700
Click to enlarge

f700
Click to enlarge

f700
Click to enlarge

f700
Click to enlarge

f700
Click to enlarge

f700
Click to enlarge