What is the answer to "Sound of a good car engine" in the NYT Crossword?

The answer to the NYT Crossword clue "Sound of a good car engine" is HUM (3 letters).

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NYT

Sound of a good car engine NYT Crossword Clue

Down clue · from the October 29, 2025 puzzle

Stuck on “Sound of a good car engine” from the New York Times Crossword? Here is the verified answer:

Answer

HUM

3 letters · Down · last seen October 29, 2025