The Prius's 52 mpg overall is a phenomenal achievement. It's a significant improvement over the previous generation's 44 mpg overall.
There's more going on with the fourth-generation Prius than just fuel sipping, though. It still packs the traits Prius owners have come to love, such as hatchback versatility and just enough quirks. The improved handling and more sculpted styling are meant to inject a younger persona to the Prius.