The phrase "need for speed" is often associated with fast cars and high-speed racing. However, there are several synonyms that convey a similar sense of urgency and excitement. For example, "need for velocity" emphasizes the speed and motion of an object. "Craving for swiftness" suggests a strong desire for quick movement. "Drive for haste" implies a need to hurry and move quickly. "Thirst for rapidity" connotes a strong craving for speed. Ultimately, while these phrases may have slightly different connotations, they all capture the excitement and energy associated with the need for speed.