I'm thinking about selling my IPL
 

Has anyone switched to an Audi S4? I need a sedan now.
I'm thinking about switching to a 2013, which has the supercharged 6 cyl.
If anyone has, or has driven one, can you tell me about it? I know they are pretty fast, but that's about it.
Thanks.

Suggest that you research potential impacts from carbon build up.
You may go into Audiworld forum as source.
It appears that direct injection may be a strong contributor to CB problem

Definitely get one with an extended warranty if possible. I've driven them in anger and it's a fun ride with lots of mod potential. I'll hopefully be sliding into an RS3 within a year as I'm not enamored with Infiniti's new offerings. If you can get by with an S3 (size that is), it also has a ton of tuning potential, arguably more so than the S4 and is more nimble. Small back seats though. It's like a grown-up Evo in a lot of ways with fit and finish that's exemplary. The transmission is brilliant and although the steering is dead, everything else felt great. I could live with an S3 as-is. It's also fairly easy and cheap to add 60-70hp on that platform. You'll outrun an M2 easily.

They're not bad as long as you purchase cpo with documented history. And no maintenance is not any more expensive than what you have now. My Bmw e46 that was supercharged was by far the easiest and cheapest car to maintain. And the way Bmw built their cars makes them easy to work on