Business Green: Just when you thought modern Minis were getting far too big for their name, the company’s design team has unveiled its smallest version yet, in the shape of a brightly coloured electric scooter. Mini unveiled one version of the Scooter E-Concept in London last week, with a further two designs slated to be showcased in Paris later this week. The company said the zero-emission vehicles will be powered by an electric motor integrated in the rear wheel and a lithium-ion battery …