Ok so I went down to my friendly Honda Dealer today and took some measurements.
I get around 1380mm, which is more than I need.
The Passat is 1333mm and 3 baby seats fit in it!

From what I can see it looks like to following has changed over the model cycle;
- Revised front and rear bars and grille
- A Pillar mounted Blue Tooth
- Front and Rear Park Sensors now standard

All else appears to be the same.

Can anyone confirm if a 2008 model has the following items in the centre armrest;
- Power Outlet 12v / USB / AUX

And also does a 2008 model have mp3 compatible 6 disc stacker???

Many Thanks.