I highly recommend the 3.0 manual, go for a Super Lusso if you can find one. Fuel consumption is not that much worse than the TS (mine averaged about 28mpg), and the engine is a fair bit less stressed so will last well into silly mileage.
The V6s seem to be far better at preserving cambelts aswell, though that may just be that there are more TS's out there and so we hear more cambelt horror stories.
Things to look out for:
- Make sure it has FSH, though not necessarily Alfa main dealer
- The 60k service is £500, the 72k is £850 from Alfa on the V6s. Plan accordingly
- The clutch on the manual V6s will feel very stiff, they are all like that.
- If the rear shocks are worn, it is an 8 hour job to replace (parcel shelf, rear seats etc all have to come out)
- Cloth interior seems to hit the used value hard. Work out how much you really want leather.
- As Niall said, CD changer is a git to find aftermarket.
- Make sure the car has the audio code (2 codes if it has SatNav), and the master key.
- Look for uneven tyre wear. In my experience, they all tend to do this due to Alfa's alignment specs. It does mean the tyres can wear out quite quickly though. I would advise swapping the tyres between axles every 6k or so.
- Don't park it facing uphill with very low fuel level, and don't run it for just 30 seconds (ie moving it off the driveway) - both will cause it to not start easily.
- Oh, and finally, try and get one with headlamp washers. The standard headlamps are pretty poor, and after a day or two's driving on wet roads, they are even worse than useless
Great, great cars. Vastly underrated too, so go enjoy.
Hope this helps,