[Timetrvlr]

Toyota 1/X Plug-In Concept Makes North American Debut At 2008 Chicago Auto Show

6 February 2008

Toyota brought its 1/X (pronounced “one-Xth”) plug-in hybrid concept vehicle to 2008 Chicago Auto Show (6-17 February) for its North American debut. The Toyota 1/X concept made its world debut at the 2007 Tokyo Motor Show.

Comparison of 1/X Concept and Prius Specifications 1/X ConceptPrius
Total length (inches) 153.5 vs 175.0
Width (inches) 63.8 vs 67.9
Height (inches) 55.5 vs 58.1
Wheelbase (inches) 102.4 vs 106.3
Curb weight (lbs) 926 vs 2,890
Seating capacity 4 vs 5
Engine displacement 500 cc vs 1,497 cc
Battery chemistry Li-ion NiMH

The hybrid powertrain in the ultra-lightweight 1/X combines a home-rechargeable lithium-ion battery pack with a 500cc flexible-fuel engine in a system that is 1/4th of the total weight of the Prius powertrain. The result is a vehicle with the possibility of traveling more than 600 miles on a small four-gallon tank of fuel and achieving acceleration performance equivalent to that of the Prius.

The 1/X features an aerodynamic ultra-lightweight design that maintains the interior space of the Toyota Prius hybrid and is approximately one-third the weight of the Prius. Its 926-pound curb weight is partially achieved through the use of a light but very strong carbon fiber reinforced plastic (CFRP) throughout the body frame.

The aerodynamic shape of the 1/X and unique cabin design result in smaller pillars, allowing passengers more visibility and helping to create a greater sense of openness and freedom with its outer surroundings for driver and passengers. The CFRP material is lighter and stronger than traditional metals, creating a shock-absorbing like structure with cross-sections that help absorb energy during an impact.

The 1/X roof is produced from a bio-plastic made from environmentally-responsible material derived from kenaf and ramie plants. The result is a roof that improves heat insulation, emits less carbon dioxide, increases the amount of light entering the cabin, and reducing noise.
On the inside, the 1/X employs four ultra-lightweight seats made of polyester fiber that is knitted three-dimensionally for added comfort. The material functions like a spring or damper that helps create a cushion-like feel for all occupants.

From Green Car Congress

[Timetrvlr]

[Timetrvlr]

The idea of "light-weighting" automobiles using 2008 technology rather than 1908 technology seems like a great leap forward in using fuel efficiently. No predictions on fuel economy yet but I'll bet it's well over 100 mpg.

[mollyL]

That is one snazzy car! Its design is really airy and wonderful. Being that I live on the coast where wind can be 60-80 mph, how would the car stand up to that?

[tater03]

I think this looks great. I just wish that they would publish the safety records also of these cars. Having two young sons I just like to know how safe they are also.

[EviesEarth]

I too would want to know the safety ratings. Other than that, it is a nice looking car! I would drive it.