What available tyre would be most compatible on my Audi A8 ?

Question from Mike Arnold, 05/04/2011 :The spare on my Audi A8 is unused and as I need a couple of new tyres I want to use it. It is a Dunlop SP Sport 2000E 225/60 ZR16 98W. Is this tyre still available, and if not what available tyre would be most compatible with it? Thank you.
Answer by rezulteo, 05/04/2011 :

Due to technical reasons we disadvise to use mixed tyres, especially for sport tyres.