Pulver Vintage Modified

Dustin Smith (37), Aaron Middaugh (91) and Andre Layfield slug it out for position during the BOSS wingless sprint-car feature at Pittsburgh's Pennsylvania Motor Speedway. (Hein Brothers Photo)
Jeremy Spoonmore's engine explodes in a ball of fire during Sunday's Mid-American Stock Car Series race after contact with Brad Keith sent his car into the turn three wall at Rockford Speedway in Loves Park, Ill. (Doug Hornickel Photo)