Demonstrated in Latina, Italy, the energy density of the vehicle’s battery reportedly increased as it traveled for six hours.

when low temperatures would make the battery range and open cabin trying. Realistically – objectively – the Renault Twizy is nowhere. A range of less than 50 miles. An approximate 50mph top speed.

You actually sit right on top of the battery – the single heaviest part of the car – which means a low centre of gravity and good stability. Even at its top speed of 53mph, which feels very fast in ...