I don't know about the skoda, but it is the same family as the seat, so I guess things might be similar. I have a seat leon ST (estate) which has a flat loadin and seats that go down. But the actual floor of the leon is actually lower, and it just has some floor thing which makes it level. if you want, you can take that out and put it at a lower level, whcih presumably gives you more space top to bottom but gets rid of your flat loading, so I have never done it. But it can be done. Is it not a similar thing but with yours put down at a lower level?
- edit -
I looked at a review, it is the same thing but it is an option, I guess mine was just one that had it fitted.
If I didn't have it, I would just get a 6mm MDF from B&Q, cut it the right size and paint it black or put some carpety stuff on it, it would be exactly the same thing.