What is your car's rarest option?

cudamark said

Along that line....why were there no '64-6 Barracuda convertibles? They could have based them on the Valiant convertible with all on-the-shelf parts.

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I think Plymouth felt that the only distinguishing feature of the Barracuda was the big glass fastback — a convertible would be literally nothing but a re-badged Valiant, and they really wanted to avoid calling attention to the Valiant connection. But it could have worked if they dropped the Valiant convertible...