NASCAR takes three cars to research center

NASCAR officials took Kevin Harvick's #29 car to its research and development center to study why the energy-absorbing foam started smoking in his car. It's a problem other drivers, including Matt Kenseth, said they had at Bristol last weekend. NASCAR took Jimmie Johnson's #48-car and #26-Jamie McMurray's car to its research and development center in its continuing process of studying how a race affects the Car of Tomorrow. Both teams are expected to have their cars back today. Roanoke Times