I went to an Audi corporate event today at a nearby racetrack they rented. It was a training for S and RS models current and future strategy. The had multiple S4, S5, S6, S8, and RS models. I didn't get an seat time due to pesky insurance issues but it was still a fun day and damn impressive to see the S and RS cars running. I did get a ride in a S8 and that car is unbelievable for a full size sedan. The RS5 is crazy!
I still love me some BMW but Audi is storming hard and their plan is to be the number one luxury brand worldwide by 2020. With their current and future models they could be right there. A few interesting tidbits I picked up: 2014 will see a Q5 TDi stateside, a S version Q5 (SQ5) is coming, there will be a RS7, and they will launch a full Exclusive program for most models allowing for full customization to customer specs.
I took a bunch of pics but here are a couple and a nice little video.