Consumer Reports has confirmed the 52-mpg combined EPA fuel-economy rating of the 2016 Toyota Prius hybrid, although its ratings in city and highway testing differed.
Nonetheless, the magazine says the 2016 Prius is the most fuel-efficient car it's ever tested.
The latest Prius even beats the original Honda Insight hybrid, the magazine says, That small two-seater was introduced for the 2000 model year.
The 2016 Prius actually has two separate versions, when it comes to gas-mileage ratings.
Most models are rated at 52 mpg combined (54 mpg city, 50 mpg highway).
However the Prius Two Eco, essentially a base model fitted with a lithium-ion battery pack that's smaller and lighter than the nickel-metal-hydride pack in the base Prius Two, does better than that.
It's rated at 56 mpg combined (58 mpg city, 53 mpg highway), making it the most fuel-efficient car without a plug, in terms of EPA ratings.