If what you've got is factory, then that's insane. (not saying it is or isn't stock for an S4, but if it is..... wow.... just wow......)
Now I'm seriously curious as to whether that which you have is the stock setup for S4 or not.
BTW, never said I didn't believe that you didn't have lines going through the cabin. More that I couldn't believe that would be a factory 'thing' in the day and age in which yours was built.
Hi Darren,
I would bet $100 that what you see is OE........why would anyone change the gas lines to run them through the cabin? Plus everything looks OE (no Jerry rigging).
No problem I wasn't made at anyone I was just taken back with the dis-belief of my set up and just plain woke up in a bad mood this morning.
Stuff in the trunk looks the same as my S4, as does the stuff underneath. I don't remember exactly where the hoses go under the rear decklid.
I was thinking of you Tom when I was taking pictures of the trunk's rear shelf because I have taken out the vapor/gas expansion tank and plug the lines and knew if I had show that in a picture I would catch hell from you.

I abandon the entire system and drilled a hole in my gas cap (heck the new engine has zero emmisions now, the cat is gone and I was tired of the gas smell).
I will say if you pull back the carpet on the back wall of the cab you will find the fuel lines just like mine.
Murray
Hopefully someone else with a series 4 can shoot some pictures to show how they are set up.
Hi Steve,
I would like to see picture of an older Spider fuel lines in the trunk and at the fuel pump to see how it's plumbed?
Any S4 owners out there? With pics of the upper trunk?
John,
Yes I would like to see this too.
As a general note if this is how Alfa Romeo did the fuel lines on the S-4 Spiders and maybe the 1989 and 1990 Spider too an alert thread on the BB might be a good idea to at least make the owners aware of a possible problem?
For my Spider being used as a dual purpose car I
really need to re-route the gas line out of the cab before the next track event!