Pedalectric Vehicle Corporation in Denver, Colorado develops, manufactures and sells 4 wheel vehicles based on ultra light materials usually found in contemporary aircraft design. Using the design goal of building vehicles that are light enough to pedal, Pedalectric is developing a line of 2 person, side by side human electric and human engine hybrids that are inexpensive to buy and fun to ride. Pedalectrics are currently designed to meet the US Department of Transportation's FMVSS 500 for Low Speed Vehicles. PDL curb weight is less than 250 kg. and vehicles may use batteries, small fuel cells and 49cc natural gas and ethanol engines as a back up source of power, with the potential to easily travel for more than 100 miles. Cheaply.