The sun is down and the rain has arrived at the National Auto Sport Association (NASA) 25 Hours of Thunderhill. The weather has kept crews busy throwing on rain tires.
With the sun out of the picture it is time for teams to test the demands of their electrical systems while running their insanely bright lights. Thunderhill Raceway Park in Northern California is a very dark place at night. The only lights on the race course come from the cars themselves. Stock headlamps need not apply.
To view live timing of the event click here.
Photos by GotBlueMilk.com Photography.
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