...is being able to press the power button on the mmi system to mute it instantly. that way, i can hear the best part of the car, the engine :)

btw, i drive my rs4 daily and it just keeps getting better and better every day. i traded in an 05 911CS for this car and i dont regret it one bit!

subcube
2007 rs4 phantom black

So weird - usually as you get used to a new car it is not as much fun, with this car it is totally the opposite - and I have had 5 Audi's before this so it's not like I'm new to the brand.

If i were to build the car i would put a single earbud that retracts in and out of the headrest that is connected to a microphone located either at the tip of the exhaust or near the engine. This way you can listen to music cranked and your car at the same time.

I think its genious