i used to have a e36 m3 years ago was ok but a bit dated now and lots more modern cars just as quick.
i have never owned a e39 m5 but deiven a few and tbh again dated but lovely lovely drive well worth the money in fact i have driven the new e92 m3 a few times now and it so reminds me of the e39 m5 and for that reason so not worth 60k when you can have a mint e39 m5 for mid teens.
J