The electric car bandwagon is going to be heavier in the coming years and Audi AG aims to add some more weight to it. Two SUVs -- the e-tron SUV and the e-tron Sportback -- will lead the electrification of Audi’s portfolio. Audi has announced that it would also launch Avant (wagon) and Sportback forms of its electric cars in future. The carmaker will use a total of four platforms for electric cars -- MLB (modular longitudinal platform), an e-platform developed in collaboration with Porsche, Premium Platform Electric (PPE) developed with Porsche, and the just-revealed MEB.