Audi has repeatedly signaled its desire and intent to become the world's leading luxury car brand by 2015, which would mean passing both of its German rivals, the aforementioned Mercedes-Benz and BMW, along with Japanese automaker Lexus. Plus, Audi offers a pretty compelling lineup of vehicles with which to do battle with those formidable competitors.
According to Autocar, the biggest single contributor to Audi's passing of Mercedes-Benz is the Chinese market, where Audi sells twice as many vehicles per year as Mercedes-Benz. In fact, one out of every five Audis built is sold in China. Considering how rapidly the Chinese market is expanding, Audi is certainly finding itself in an enviable position. Time will tell if it's able to maintain that growth in the face of constant pressure from its German and Japanese rivals.