Out of those two? The Fiesta. The rear seat and boot space of the Fiat is laughable, and I can't fit in the front seat without the sunroof option. There's no glove box either, and the door pockets are also on the small side. Very cutesie, but rubbish as an actual car. The Fiesta is better, but if I were buying a 2015 car it certainly wouldn't be either of those.