Cars are generally faster than motorcycles for a few reasons. The first reason is horsepower. Cars typically have a much larger engine than motorcycles, which allows them to generate more power and therefore go faster. This is especially true for high-performance sports cars, which can have engines that are much larger and more powerful than even the most powerful motorcycles.
The second reason is aerodynamics. Cars are designed to be as aerodynamic as possible, which helps them cut through the air and reduces drag. This allows them to maintain high speeds for longer periods of time. In contrast, motorcycles are more exposed to the wind and have less protection against wind resistance, which can slow them down.
Finally, weight plays a big role in a car's speed. Cars are typically much heavier than motorcycles, and this extra weight gives them more momentum and allows them to maintain their speed better. This extra weight also helps cars handle better at high speeds, making them more stable and less likely to spin out of control.
But in reality, cars are faster than motorcycles, because motorcycles are two-tired!