How much of a Xsara fits in a Saxo?

[idev03]

Hello,

First of all, I don't really know where to ask my following question so im just gonna leave it here. If this is not the right subforum please let me know!

Anyway, i have a Saxo 1.0 that i use for autocross (the kind one does in a field) now as you can imagine, 45hp is not much to do these kind of things.
So i got a Xsara with a 1.6 (TU5 8v).

The question:
I was wondering how much of the subframe/suspension i could swap over and what does or does not fit.
For example, I think the lower control arms fit (not sure tho).
The reason I want to swap more then just the engine is becouse the Xsara's suspension seems much more beefier than the Saxo's.

So if any of you guys have ever done something simular or have expierence working on these cars. Please let me know, if not I'm gonna have to find out the hard way.

Greetings
idev03