I got a Vectra C 3.2 Manual Elite with all the toys Sat Nav Colour CID etc, LPG'd as well, wasn't really in the market for one, but this came up as Seller kept quiet about it being LPG as there was no Gas where he lived, price was right so would have been rude not to for a cheap run around.
DiffO get a manual, especially if your thinking about getting it LPG'd, there not brilliant on fuel, MPG wise no much better than my 3.2 Manual Plod (also LPG'd), In fact I would also say my 3.2 Manual Plod gives the Veccy 3.2 a good if not better run for its money on a straight and around corners, the Veccy just doesn't seem to have the same grunt as the Omega 3.0/3.2's.
Driver and seating position seems to take ages to get used to, keep messing with the seat position doesn't seem to help, unlike the Omega where you just jump in it and go.
Can be a lot of phantom Canbus fault reporting issue going on with the Veccy C, which can be challenging with the MOT Man, another common problem is the Electric Assisted Power Steering throw up faults when theres nothing wrong with it, under steer is not too bad on them with the right tyres on, no provision to turn TC off so your pretty much in the hands of the Gods if you push it around in the wet.
Apart from that not a bad run around once you get the hang of them compared to the Omega, not sure I would be paying tons of money for one though.