Used to be one around the Galway area a few years back (mid-80's) - the guy used to turn up to local rallycross meets. You're right, was only in LHD (as was the Mk2 125TC - immediate predecessor to the 130TC - very rare). The official reason given at the time was the usual downpipe v's steering gear issue, although I seem to recall the distributor location wasn't ideal either (although this might be my grey matter playing tricks on me).
The interior was similar to the 105TC of the same era. I have a brochure for the 125TC somewhere... nice car!