Variation of the 3 rd generation available today 'two Prius' mileage is 51/48 mpg impressive city and highway respectively. You have to pay a starting price of about $ 23,000 for this hybrid car. The Toyota Prius is incorporated with a 1.8-liter DOHC 16-valve engine and a permanent magnet synchronous AC motor, which together provides an output of 134 hp.