2017 Toyota Prius Prime Advanced BASE PRICE: $27,100 for Plus; $28,800 for Premium; $33,100 for Advanced. PRICE AS TESTED: $36,325. TYPE: Front-engine, front-wheel drive, four-passenger, plug-in, gasoline-electric hybrid, mid-size hatchback. ENGINE: 1.8-liter, double overhead cam, Atkinson cycle four cylinder with VVT-i mated to an electric motor and 8.8-kilowatt-hour lithium ion battery pack. MILEAGE: 54 mpg
