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Kyle Busch has some tire issues after leading.
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Busch loses his lead -- ending his winning streak.
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Austin Dillon makes the pass, putting 'Rowdy' down to second.
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Dillon wins at Auto Club Speedway after thrilling final laps.
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FONTANA, CA - MARCH 19: Carl Edwards, driver of the #19 Subway Toyota, and Kurt Busch, driver of the #41 Haas Automation/Monster Energy Chevrolet, practice for the NASCAR Sprint Cup Series Auto Club 400 at Auto Club Speedway on March 19, 2016 in Fontana, California. (Photo by Brian Lawdermilk/NASCAR via Getty Images)
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FONTANA, CA - MARCH 19: (EDITOR'S NOTE: This image has been converted to black and white.) Crew members work on The #48 Lowe's / Superman Chevrolet, driven by Jimmie Johnson (not pictured), during practice for the NASCAR Sprint Cup Series Auto Club 400 at Auto Club Speedway on March 19, 2016 in Fontana, California. (Photo by Jonathan Moore/Getty Images)
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FONTANA, CA - MARCH 19: Dale Earnhardt Jr., driver of the #88 Nationwide Insurance / Batman Chevrolet, stands in the garage area with a crew member during practice for the NASCAR Sprint Cup Series Auto Club 400 at Auto Club Speedway on March 19, 2016 in Fontana, California. (Photo by Jeff Zelevansky/NASCAR via Getty Images)
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FONTANA, CA - MARCH 19: Daniel Suarez, driver of the #19 Interstate Batteries Toyota, poses for a picture after winning the pole position for the NASCAR Xfinity Series TreatMyClot.com 300 at Auto Club Speedway on March 19, 2016 in Fontana, California. (Photo by Brian Lawdermilk/NASCAR via Getty Images)
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FONTANA, CA - MARCH 19: A detail view of the digital dash of during practice for the NASCAR Sprint Cup Series Auto Club 400 at Auto Club Speedway on March 19, 2016 in Fontana, California. (Photo by Robert Laberge/Getty Images)
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FONTANA, CA - MARCH 19: Austin Dillon, driver of the #2 Rheem Chevrolet, talks with his brother Ty Dillon, driver of the #3 Bulwark/PAR Electric Chevrolet, on the grid during qualifying for the NASCAR Xfinity Series TreatMyClot.com 300 at Auto Club Speedway on March 19, 2016 in Fontana, California. (Photo by Jeff Zelevansky/NASCAR via Getty Images)
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FONTANA, CA - MARCH 19: Chase Elliott, driver of the #24 NAPA Auto Parts Chevrolet, stands in the garage area during practice for the NASCAR Sprint Cup Series Auto Club 400 at Auto Club Speedway on March 19, 2016 in Fontana, California. (Photo by Brian Lawdermilk/NASCAR via Getty Images)
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FONTANA, CA - MARCH 19: Kasey Kahne, driver of the #5 Farmers Insurance Chevrolet, works with a crew member in the garage area during practice for the NASCAR Sprint Cup Series Auto Club 400 at Auto Club Speedway on March 19, 2016 in Fontana, California. (Photo by Robert Laberge/Getty Images)
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FONTANA, CA - MARCH 19: Austin Dillon, driver of the #3 American Ethanol Chevrolet, takes a photo with a fan in the garage area during practice for the NASCAR Sprint Cup Series Auto Club 400 at Auto Club Speedway on March 19, 2016 in Fontana, California. (Photo by Brian Lawdermilk/NASCAR via Getty Images)
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FONTANA, CA - MARCH 19: Matt Kenseth, driver of the #20 DeWalt Toyota, talks with Jamie McMurray, driver of the #1 McDonald's Chevrolet, in the garage area during practice for the NASCAR Sprint Cup Series Auto Club 400 at Auto Club Speedway on March 19, 2016 in Fontana, California. (Photo by Jeff Zelevansky/NASCAR via Getty Images)
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FONTANA, CA - MARCH 19: Joey Logano, driver of the #22 AAA Southern Cal. Ford, sits in his car during practice for the NASCAR Sprint Cup Series Auto Club 400 at Auto Club Speedway on March 19, 2016 in Fontana, California. (Photo by Jeff Zelevansky/NASCAR via Getty Images)
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FONTANA, CA - MARCH 19: The #88 Nationwide Insurance / Batman Chevrolet, driven by Dale Earnhardt Jr. (not pictured), sits in the garage area during practice for the NASCAR Sprint Cup Series Auto Club 400 at Auto Club Speedway on March 19, 2016 in Fontana, California. (Photo by Robert Laberge/Getty Images)
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FONTANA, CA - MARCH 19: Danica Patrick, driver of the #10 TaxACT Chevrolet, adjusts her equipment in the garage area during practice for the NASCAR Sprint Cup Series Auto Club 400 at Auto Club Speedway on March 19, 2016 in Fontana, California. (Photo by Jonathan Ferrey/Getty Images)
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FONTANA, CA - MARCH 19: Daniel Suarez, driver of the #19 Interstate Batteries Toyota, and Kyle Larson, driver of the #42 ENEOS Chevrolet, leads a pack of cars at the start during the NASCAR Xfinity Series TreatMyClot.com 300 at Auto Club Speedway on March 19, 2016 in Fontana, California. (Photo by Brian Lawdermilk/NASCAR via Getty Images)
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After some thrilling final laps, Austin Dillon pulls away with the win at Auto Club Speedway for his first win of the 2016 NASCAR XFINITY Series season.
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Dillon celebrating his win.