Answer:
Brand Competition
Step-by-step explanation:
Brand Competition arises when two or more different companies offer a similar product, under a different brand. The products are similar, but not fully substitutes: they can be distinguished in some way: quality, features, price, and so on.
In this case, what makes the Ford Mustang and the Audi R8 is the price. The Ford brand is significantly cheaper than the Audi brand, which might give Ford the upper hand in market share. However, this is not always the case because the Audi car could have the upper hand when it comes to quality, and obtain more marke share because of that.