Up until now, we’ve only heard rumors about possible Audi Q6 and Q4 SUVs, but now its official. Walter de’ Silva, Design Boss at Audi’s parent Volkswagen Group, has confirmed that the company has started to work on a BMW X6 competitor, while plans for a smaller SUV are still under consideration.The X6 competitor is known as the Q6 and will be placed between Audi’s Q7 premium large SUV and the Q5 premium medium SUV: \"We will definitely launch a sportier crossover in between the Q7 and Q5.\" The new model will be built on the Q7 platform and is expected to arrive sometime in 2015. As for the other SUV, known as the Q4, it will be placed between the Q5 and Q3 and will be a competitor for the X4, a model that BMW will be launching in 2014.Both models will be offered in an attempt to boost Audi’s sales, especially on the European market where BMW is the leader in the SUV market.