So. Many. Cars. Ben Shimkus/Business Insider

I attended the Manheim New Jersey used-car auction, where 4,500 vehicles are sold each week.

The lot is a nimble indicator of the auto industry's health.

Right now, hybrids are a trend, executives told me, and EV demand is correlated to gas prices.

"Nine-and-three! Nine-nine! Nine-and-three!" an auctioneer at Manheim New Jersey chanted rapidly. "We have a four?" A split-second later: “Nine-and-four!”

It sounded like gibberish to me. To dealers, it was a call to action.

On Wednesday, I attended the massive used-car auction and heard a blur of dealer names, vehicle models, and bids rising in a flash…

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