Stian Hafsengen is a rally cross and hill climb racer from Oslo, Norway. He competes in a custom Ford Fiesta powered by a turbocharged 2.5 L Volvo inline-five and 4WD drivetrain. In 2018 the motor made 1026 horsepower and 1146 Nm of torque on VS Motor’s dyno. It was running on 2.5 bar (36.2 psi) of boost and a MoTeC M150 ECU.
Source: Buldre Racingteam FB page, VS Motor FB page, and @secprohadeland via Piotr