NASCAR at Phoenix: Stifling heat forces Dale Earnhardt Jr. to cool down any way he can

Watch Dale Earnhardt Jr. shove a bag of ice into his racing suit to survive his 144-degree car.

Scorchingtemperatures at NASCAR's Camping World 500 in Phoenix is forcing drivers to do anything necessaryto keep cool.

In-car temperature reached 144degrees inDale Earnhardt Jr.'sNationwide 88 car, and that forced him him to get creative to stave off the heat.

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If you're wondering, no, stock cars don't have air conditioning.

Drivers use ventilation systems in their seats, floors and helmet to manage the extreme heat. However, that's mainly used to keep air flowing in the car. Theventilation systems only bring the temperaturedown about 10 degrees.

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