Elio: A 100 mpg car that costs £4,500
America is the home of the gas guzzling car, so in the face of record-breaking petrol prices it is perhaps no surprise that it is giving birth to the Elio – a super-efficient, three-wheeled car that squeezes 100 miles from a gallon of petrol and costs the equivalent of only £4,500. The Elio uses a 900cc, 3-cylinder, fuel-injected and liquid-cooled…