ICE refers to the Internal Combustion Engine, a six-cylinder, four-stroke, turbocharged, direct injection 1.6-litre unit and one of 6 components that makes up the PU.

The six cylinders are arranged in a 90° V layout and a limit of 15,000rpm.  The engine is designed to work harmoniously with the other five elements of the hybrid F1 Power Unit.

In modern Formula 1 car design, the engine acts as a stressed component, rigidly connected to the back of the monocoque to form the spine of the car, with the rear suspension and rear wing hung from it. 

Andrew Burden

The author Kiwi F1 Fan