The mass of a car affects its performance in several ways:
* Acceleration: The more mass a car has, the more force is required to accelerate it. This is because the amount of force required to move an object is directly proportional to its mass.
* Braking: The more mass a car has, the longer it takes to stop. This is because the amount of force required to stop an object is also directly proportional to its mass.
* Fuel efficiency: The more mass a car has, the less fuel-efficient it is. This is because the engine has to work harder to move a heavier car.
* Handling: The more mass a car has, the more difficult it is to handle. This is because the mass of a car affects its inertia, which is its resistance to changes in motion. A heavier car will be more difficult to turn and stop than a lighter car.
In general, the lighter a car is, the better it will perform. However, there are some cases where a heavier car may be preferable, such as for towing or in an accident.