Next generation Subaru Impreza WRX STi may feature hybrid powertrain to boost more power and efficiency at the same time. The new WRX STi will be powered by 2.0 Liter turbo boxer engine which build to works with electric motor. The normal combustion engine will power the front axle while the electric motor will power the rear axle. The new hybrid technology is believe under rapid testing for public road. The new Subaru Impreza WRZ STi generation is expect to come out sometime in 2017.