Parked outside the front doors of a handsome 1920s brick building in a Parisian suburb is a bright yellow Renault 5, a new electric vehicle (ev) unveiled by the French carmaker in February. It is permitted this enviable spot because it belongs to Luca de Meo, the boss of the company, whose top brass occupy the building. Mr de Meo has brought a renewed confidence to Renault since taking over as its chief executive four years ago. He has turned…