hehe, finally worked out how to get the back seats out of my car, so, just for the weekend Im ditching the back seats, spare wheel, tool kit and the parcel shelf, gotta take it out now, and see a) how noisey it is, and b) whether it makes any noticable difference to the performance at all.....
Anyway, heres a photo of all the bits
http://www.roamer-it.co.uk/cliosport/backseats.jpg