Double din?

Apologies for the obviousa question and my lack of abilaity to find this out for myself but does the S3 come with a single or double din head unit as standard on the latest model?
I haven't paid for any upgrade on the ICE as I want to upgrade it with my own kit.

Thanks.

Thanks Dave.
I actually thinking of putting this in:

http://www.pioneer.co.uk/uk/products/10/20/241/AVIC-D3/index.html

As it will give me:
Great Sounds
Full bluetooth phone functionality
Sat Nav

.....all it really needs is an inbuilt Radar detector and then that would get rid of all my clutter!!

Plank said:

Concert III is superb.

Beware if swapping the head unit - the speakers on the Concert III are "active" - i.e. they are designed to work from the amp built into the boot, next to the subwoofer. If you swap HU, not sure whether you'd be able to get any/all of the speakers working...

Click to expand...

It sounds like the stock Audi system is quite good then if they go as far as adding an amp and Sub! I would plan to either remove those bits altogether or just leave them where they are unused.
I am not exacactly going for the "rude boy" speakers everywhere set up but I will be changing the following:

New HU either current Pioneer single din or new unit double din?
DAB module for above
Multichanger
Front mids and tweeters with an amp to drive them.
Rears left as standard,driven by new HU
Sub in Boot driven by seperate amp

Can anyone see any big problems with this?