Smart's iconic lightweight fortwo was such a natural for conversion to electric propulsion that it was one of the first zero emission cars with a badge recognizable by the general public. In essence, the electric smart changed little from the petrol-engined version apart from the drivetrain. Now it has teamed with chemical developer BASF to envisage the smart reconstructed with new materials for insulation, reflection, energy management and weight saving. The roof not only transmits light, it generates energy. smart says the end result of the forvision makeover is an increase in range of 20 percent with exactly the same powertrain.