I will be picking up my RS4 tomorrow...well actually today (fingers crossed!) and look forward to joining this exclusive club!
Just for everyone's info....I'm sure you already know this but it's useful for newbies like myself wanting to find out more about their RS4 before purchase or even after purchase?
You can call this number 0800 523037 which is Audi's Spec Check service and give them your licence plate and they can tell you what info they have on the car.
Hope someone finds this useful!

Apparently mine comes with the following:
Sound Package
Sports Package
Technology Advanced Pack
Heated Front Seats
Electric Front Seats with Memory
RS4 front Super Sports Seats: Full Fine Lunar Silver Nappa Leather with Rock Grey Piping and RS4 embossing
Open Sky Panoramic Sunroof
Electric Folding, Heated, Auto Dimming & Memory Side Mirrors
Privacy Glass
Power-operated Tailgate

Thanks for reading and have an awesome weekend all!
Best,
Alex