No, there were actually three Tornado fuel tanl sizes - can't remember the quantities off the top of my head, but the original IDS was planned to have had two sizes - one subsonic and one supersonic. The 'supersonic' ones were smaller than the other ones.
They were flown on the pre-production aircraft, but never entered service (with the RAF - not sure about Italy and Germany, but I think not) but they lurked about in some kits originating when the aircraft was still in development