I wouldn't take any notice of the fact that these are advetised to fit a specific Fiat, they will have adverts on ebay saying these seats will fit Corsas, Fiestas, Clio's, etc, etc, etc. Ebay shops often list the same item loads of times saying it will fit a particular make so that when someone searches and includes thier make of car the advert will come up.
These are universal seats, you would have to buy subframes separately in order to fit them, the subframes are sometimes model specific, but often they are universal too, budget £30/£50 each for them.
'Panda Pete plans to fit a Corbeau seat to his Panda soon and he is going to mount it on a modified Panda seat frame he has just picked up from me. You might like to wait and see how he gets on, if it works it would be a good way of fitting the seats you're looking at.
As Dave says, these seats don't have a tilt facility so rear seat access would be for gymnasts only.
I don't want to put you off as they are nice seats, just want to ensure you are going in with your eyes wide open.
