If you 'really' want the soot chucker.
Available in two flavours - 115BHP and 130BHP. Simply just a re-map between the two. No hardware changes. *can* be mapped to 170BHP with a few simple hardware changes.
They have two fuel pumps. One in-tank, and one engine bay. Make sure BOTH work. (You'll hear them merrily buzzing away for 50 seconds when ignition is on).
They are Chain driven, so listen for the rattle of a stretched chain - Expensive to replace.
When the engine is running, pull the dip-stick.... NO oil should leave the dip-stick tube. If it does, walk away.
Make sure it has the Pinky-Coloured OAT coolant, not the older type.
Plan your journeys well ahead. They aren't very quick.

I have to say though, both the 75 and ZT are lovely places to sit. I'd have one in top-spec.