No batteries or plugging in needed here. Audi
has just announced that they will be bring an updated diesel-powered A1 to the UK market, and that it will deliver up to 74.3mpg on the European cycle (that's 61.9mpg US, still quite a number). The A1 has a 1.6-liter TDI which makes 105 horsepower and is mated to a five-speed manual transmission. It will go from 0 to 62 in 10.5 seconds and on to a top speed of 118mph, decent stats for a fuel sipper.