I have a whole host of images of the Volvo S40 supertourer for a project we are doing (suspension, floor area, engine bay, interior etc). I have some setup sheets and TWR technical info too.
PM me and I will get it over to you.
We also did two audio recordings of the car a few years back using a sound recorder and RODE Mics. These can be found below, also some of the images I mentioned are part of the slideshow...
https://www.youtube.com/watch?v=jqo4Lc8xthM
https://www.youtube.com/watch?v=2kxza0vfwwQ