The 2013 Ford Fiesta doesn't have the space efficiency inside of rival models like the Honda Fit, but you do get a reasonably comfortable interior that should be just fine for the commute, or for taking the kids to after-school activities.
Front seats in the Fiesta are a bit short and flat, and way too much like barstools, so the lack of support or contouring makes a long highway trip more of a chore (to the back) than it needs to be. Headroom and legroom in back is tight for rear passengers, and adults over six feet tall will find the rear seats tight; front and rear passengers may have to negotiate over how far the seats go back. But the Fiesta's body is quite narrow, meaning that you won't be able to fit three adults in back and front driver and passenger will find elbows close.
The 60-40 split rear seatback makes the Fiesta's layout about on par with other small hatchbacks and sedans. Cloth is standard, with leather and contrasting piping on higher-end models--a nice MINI-like touch in a car available at almost half the price.You definitely get more versatility with the Fiesta five-door hatchback models, with their capacity of up to 26 cubic feet, but the sedan offers a roomy (for this small of a car) 12.8 cubic feet of trunk space in its trunk.
Interior materials are a strong point, and we appreciate Ford's effort to keep the interior from being at all drab. On an individual basis you might find better materials for the price, but in the Fiesta it's just all extremely well coordinated. The adjustable cupholders are also particularly useful for households that might have both espresso sippers and Big Gulp gulpers.
Ride quality is only so-so here. As the Fiesta is a rather short small car, some traits like hoppiness on highway expansion joints are hard to mask. But Ford has made some significant efforts with sound-deadening here, with a laminated windshield and a sound blanket under the hood. When accelerating, the engine note can be a bit too much in the forefront, however.