Before I place the order...

[firebits]

Storage Pack is the number one thing I wish I'd added. I hadn't realised there were no cup holders or seat-back nets in the rear, in fact I haven't been in a car that's lacked these for well over a decade!

I can also vouch for bringing competition to your local dealer, I ended up with a better price than I got elsewhere.

Wait, what! Can I retrofit rear cup holders? Seriously, this is a thing. I have two small children.

 

[NicoS85]

Wait, what! Can I retrofit rear cup holders? Seriously, this is a thing. I have two small children.

I think it's possible but you need to replace the whole arm rest according to this diagram. If you compare this to your own arm rest you should find that there is no space for the cup holder cartridge to fit into.

 

[cuke2u]

Not cheap though I'll bet, put in a parts request here http://www.audi-sport.net/xf/support-tickets/list and see what comes back...