excellent, nice super low miles

Couple of things to do on the 2.2:
1) Regular oil changes, i do mine every 3k, but i'd say 5k max. It makes a huge difference to the smoothness of the engine. On TC, filter is about £1 oil is £9, so its cheap as chips DIY...
2) Coolant Changes - Biggest killer of HG's on 2.2 is old coolant, make sure its got Vx Red in there, if not flush it clean with water, then fill with 50/50 mix of Vx Red
3) Get yourself a code reader, can't cheat like with V6, around £35 from eBay
4) Clean the breathers as per this guide....
http://www.omegaowners.com/forum/YaBB.pl?num=11623976955) Make sure the cam cover is not leaking, if it is, replace with geniune gaskets and follow my guide:
http://www.omegaowners.com/forum/YaBB.pl?num=1225024176I'd give it a good service, no matter what the history says, fuel filer, air-filter, oil change, coolant change.
Also check the paper work on the cambelt, it must be done every 4 years or 40k which ever is sooner, also always replace the water pump at the same time as its cambelt driven.