Take another look at the sentence:

In a car, Wesley wants __________, a sound system that vibrates with booming bass, and a style that attracts beautiful women.

The blank requires a noun phrase followed by a relative clause. You chose an engine roaring with power, which is a noun phrase followed by a participle phrase. You thus have a parallelism error.

Before you continue, review the rules for parallel structure.

Go back to the sentence to try again.

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