I'm thinking about a new car. I'm really wanting to go Audi because I do a lot of skiing and I want something AWD for the mountains, yet comfortable and quick. I love the power and style of the S6 and S7, but I'm not sure about the rear-seat head room of the 7. But, I also want something fun and sporty, so I'm keeping the RS 5 in mind. What does everyone think of those cars?