A engines & motors sound effect, generated with audiocpp-stable-audio-3-sfx from the prompt below. Copy the prompt, change a word and generate your own version.
electric vehicle motor accelerating, smooth rising harmonic whine with no combustion, close exterior
Generated with audiocpp-stable-audio-3-sfx. These models respond to material, action and space, so the most useful edit is usually swapping one concrete noun for another.