I just realised I looked at the ZT-T rather than the ZT so there were about 154 built and 48 on the road.
https://www.howmanyleft.co.uk/vehicle/mg_zt_se_v6_190
I had a Mk1 previously and fancied a change and this was the first Mk2 that I saw purely by chance as i was just browsing. Loved the colour straight away and it had the spec so I bought it, only later finding out how rare the SE spec was.