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NASCAR monitoring heat and carbon monoxide inside cars

Updated: June 20, 2008, 8:01 PM ET
By David Newton | ESPN.com

SONOMA, Calif. -- The thermometer hovered at 102 degrees just prior to Friday's qualifying at Infineon Raceway, which means the temperature inside the Sprint Cup cars was much hotter.

Not to worry.

NASCAR is monitoring the situation.

The governing body began last week at Michigan International Speedway monitoring the heat inside the new cars after several drivers complained that they were hotter than the old cars.

They also began doing random tests ...

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