Australian Experimental Hybrid Car

The CSIRO produced an Australian Experimental Hybrid Car branded the "aXcessaustralia" (pronounced "Access Australia"). The car uses large capacitors , as well as batteries to store power:

The car features a patented drive train that makes best use of mixed storage. Super-capacitors are used to provide good acceleration and batteries are used to give the car range under electric-only operation (about 20 minutes in urban traffic). The car uses a series hybrid arrangement to give optimum packaging in a small space and an ideal weight split between front and rear.

From: "aXcessaustralia: the car of the not-so-distant future", CSIRO, 29 March 2006

But unlike the Toyota Prius or Honda Civic Hybrid, or even the Indian Reva electric car, the CSIRO vehicle is only experimental. It is intended to have technology from it used in vehicles of the future: you can't buy one.