Toyota’s complete redesign of the Prius gave it a sleeker look, more power, and incremental improvements in fuel economy. We measured 51 mpg with the AWD XLE version we tested. Front-drive versions are even more sparing with fuel. Although it delivers quicker acceleration than in the previous Prius, the engine is noisy when it kicks in. The car can propel itself on electric power alone at low speeds, light throttle situations up to about 25 mph. A plug-in hybrid is also available. Handling is tighter, making the car fairly nimble and the ride is firm yet steady. The low stance, curvy roof, and raked windshield compromise access and visibility. AEB with pedestrian detection, AEB highway, BSW, and RCTW come standard. Adaptive cruise control and lane centering assist are also standard on all trims.