Joel -

Sanguru said it best in one of his posts a couple of weeks back. If fuel prices are driving your decision to buy a new car, you need to consider that the financial outlay for a new vehicle may be more than differential return you'll get at the gas pump.

If you NEED a new car, because the old one is getting tired and worn out, by all means, get a new one.
If you WANT a new car because you're sick and tired of driving the old one, by all means, get a new one, if it makes you feel good.

But if you're simply trying to offset the price of gas - think very carefully about your decision from a purely economic standpoint.

Personally, I don't see one car on your list that is going to have a significant fuel consumption decrease over your existing 330ix. What are you going to save - 1 gallon of gas per fillup? $3.50 per tank at today's prices?

Keep your 330ix and buy yourself a Civic SI or some 30 MPG sporty econobox to putt around in. When the 330ix finally gives up the ghost, buy yourself the nicest, plushest, high performance car you can afford for the special excursions.