Downforce animation helps explain how NASCAR teams find speed at Indianapolis Motor Speedway

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Using NASCAR Heat animation graphics in the video above, the NBCSN booth of Rick Allen, Jeff Burton and Steve Letarte explain why teams work to keep their cars glued to the pavement at Indianapolis Motor Speedway.

Keeping the front splitter and side skirts low helps seal off air and increase downforce and grip while making a lap around the 2.5-mile track.