Audi, a brand which is recognized all over the world for there finest models both in terms of finest engines and luxury. Audi is the first company that produces 100% galvanized cars to prevent corrosion as a mass-market vehicle. It is also the first company to produce aluminum-space-frame known as ASF to reduce weight. Over 99% of shareholding of Audi is been with Volkswagen, but still Audi recognized as a separate brand for its distinct image models.