![]()
Here is a clever design from the Technical University of Berlin that they cleverly named CLEVER. It’s single cylinder 230 cc natural gas engine is capable of going 62 mph with a range of about 125 miles all the while emitting less than 60 g/km of CO2...

Clean Burning Natural Gas Vehicles (NGVs) are hot commodities in some parts of the country, where fuel can sell for as low as $0.63 per gallon. This Civic NGV is powered by the simplest and cleanest-burning hydrocarbon available, and though it looks like a standard passenger vehicle, its tailpipe emissions that are often cleaner than ambient air.