I use a '99 Hyundai Excel, It's amazing how much you can fit in this car, with all the seats down can fit 2 boards, 5 sails, 2 booms, 3 masts etc.
Runs on the smell of an oily rag and they are pretty cheap cars.
Roof racks are pretty expensive for them (approx $300), but have been using soft racks successfully to carry one board.