So I went into the dealership today to look at a new 2015 Audi S5 and we were going through the packages that I would want on my car if I could get them, and he said something that surprised me. He was saying that you can only get either the sports differential or you can get the adaptive damping suspension, you can't get both. I'm a little confused as to why that would be because you can put both on your car if you are doing the online build on audi's website. Was this sales person just wrong or am I missing something here?