Absolutely agree with mwcten. I use my '07 Fit for my work truck. With the back seat folded down, the space is cavernous. It is fun to drive with good tires, and I average around 40MPG in the summer and 35 in the winter. Stick shift, of course. I have 172K miles on it, and the only expensive repair has been a new A/C compressor at about 160K miles.
The new Scion Xbs are larger and more spacious thatn the first generation, and are reputed to be the among most reliable vehicles of the Consumer Reports reliability tracking. They do use more gas, though than the first generation or a Fit. Since they are now an older and not very popular model, VERY good deals can be had on new ones, especially left over model years. Look for discounts of up to $2K on a not too expensive vehicle to begin with. If you can swallow the extra gas use, that might be a best buy.
If you need more space, and still want a car that is fun to drive, Don't overlook the Mazda5 "micro" minivan. Almost feels more like a sportcar than the Fit, and can seat 6, if the two in the far back are Lilliputian. Don't try putting your teenagers back there, though, unless they must perform pennance.