The Ford Police Interceptor Utility (FPIU) is a hybrid SUV that is based on the Ford Explorer. It has a police-calibrated powertrain, including a hybrid-assisted 3.3-liter V6 engine that produces 318 horsepower and 322 pound-feet of torque. The FPIU also has a lithium-ion hybrid battery that powers electrical loads like lighting, radios, computers, and the air conditioning compressor