Race Car Flywheel Moment of Inertia

For race cars, lower flywheel inertia is better for the following reasons.
1. Quick Acceleration - because most of the power is available for the vehicle (we dont have to spin a beefier flywheel)
2. quick decelration - due to lower rotational inertia of the flywheel during braking or turning.
3. Lower rotational parts means lower static parts too..thus a lighter powertrain and hence better gas mileage
4. Lesser horsepower requirement - Due to lower inertia rotation parts, needs lesser horsepower to accelerate.

Yoko