Thanks for the masses

of replies, i've tracked it down, with the help of a little pointer from a gent i used to work with (Thanks again!)
On the 500 Abarth it sits "conveniently" right below the air in pipe/clean air pipe to the turbo. Remove that and it's reasonably gettable attable! Although its a bit of a wiggle to get to, and its a cartridge that you remove vertically! Nice recipe for oil drips everywhere!!
But I've stopped again now because i've been defeated by an air gun wielding retard who seems to have overtightened anything he could get his stupid, senseless hands on!!!
I cant shift the oil drain plug even using a half inch drive breaker bar!!!!!!!!
Frightening!
I just hope it was a sensible robot who built our engine!!