According to the principles of special relativity, as an object with mass approaches the speed of light, its energy requirements to accelerate further also increase. As an object with mass accelerates closer to the speed of light, it requires more and more energy to continue accelerating, and reaching the speed of light would require an infinite amount of energy.
Therefore, in the scenario you described, where a car is driving in a straight path that never ends and its speed is continuously increasing, it would not be possible for the car to reach or exceed the speed of light. As the car approaches the speed of light, its energy requirements would become impossibly large, making it unattainable.
It is important to note that the speed of light, approximately 299,792 kilometers per second (or about 186,282 miles per second), is a fundamental constant of the universe and represents the maximum speed at which information or matter can travel through space.