Honda officially announced it will no longer supply power units to Formula 1 teams after the 2021 season. If you're unfamiliar with the sport, a power unit is the car's internal combustion engine, MGU-K unit (motor generator unit-kinetic), MGU-H (motor generator unit-heat), and other control systems.

The announcement comes as a surprise, but the practical reasons behind it aren't at all that shocking. Indeed, sharp observers of F1 might have suspected something was afoot when Honda, after its initial 5-year commitment to F1 expired last year, only committed at the time to signing up for another single year.

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