If a car has 3 liter engine does this mean that it higher top speed of 2 or is just can hold more fuel?

Engine size, typically measured in liters or cubic inches, pertains to the displacement of the internal combustion engine. It indicates the volume swept by the pistons within the cylinders during one complete cycle. A larger engine size generally translates to a higher potential for power and torque, but it does not directly determine a vehicle's top speed.

Top speed is influenced by various factors, including the vehicle's aerodynamics, power-to-weight ratio, transmission efficiency, tire grip, and overall design. While a larger engine may enable a car to accelerate faster and generate more power, it does not necessarily mean it will have a higher top speed. Other factors, such as the vehicle's overall design and engineering, play a crucial role in determining the maximum speed it can achieve.

For instance, a sports car with a smaller engine but optimized aerodynamics and a lightweight construction might have a higher top speed than a larger car with a bigger engine but less efficient design.

So, having a 3-liter engine does not solely dictate that the car will have a higher top speed. It's just one aspect that contributes to the overall performance of the vehicle, and other factors must also be considered when evaluating a car's top speed capabilities.