I have two two seaters in my garage and a truck and am missing the nice, tight sports sedan. I had a sc'ed e39 540 that I maybe should not have sold. I was thinking of e39 M5, but thought I would ask here for other options to consider. Under 50k would be cool, unless its something special. There is a Dinan S3 I am looking at which would really suit the bill, but might break the bank too. Don't really know much about Mercedes or Infiinti, so any suggestions appreciated.