My Acura TSX 2004. My brother and I share this car, and its been to every game I've been to since CIDIII back at SQA. It did its best job when we left for Fulda Gap this past year at 3 AM in the morning, only sucking about a little over a quarter tank of gas.
Most we've ever fit into this car was 4 people on the way to TDC2 with camping gear all inside. The other time was when we only my brother, friend Zachary Raines, and myself drove up to Fulda this past year, but the amount of crap we took was way over that of TDC2.
Getting new tires for it soon. This thing's system in it is stock, but it sounds great.