thanks for the replies.
yes - i guess the turbine caravan is a likely contender, as i'm pretty sure theres no type rating for it, but you presumably cant fly it on a SEP rating (there being no pistons in the engine!)
and the turbine islander needs the MET class rating then?
also - the piper malibu (the piston one, not the turboprop) has its own rating of some description doesnt it? cant be flow on a SEP if i recall...
i'm not a spotter - honest!!!
To fly a Caravan (if I recall correctly) you need a Cessna SET class rating which would cover the Caravan and also possibly the Cessna 206 with the Solloy turbine conversion.
There is a type rating for a BN2T Turbine Islander.
Finally, as you say, quite peculiarly the PA46 (Piston Malibu) requires a type rating in Europe although God alone knows why. You could fly an īNī reg PA46 on your FAA licence with NO type rating provided you had been signed off for retratable gear, high performance, pressurisation etc.
I'm not a spotter either