Graham, a pic for you, it's a K series with Bell & Colvill 160 upgrade (Piper Cams, vernier timing, Minister flowed cylinder head, uprated head gasket)
When I first went to view it the original Pirellis were still fitted, the fronts date coded 1995 scared one of the very early Elises with MMC (aluminium matrix) discs
Just been to France and covered 2400 drama free miles taking the total to 19000 in 18 years