Revision History

A collision between two emergency vehicles during Saturday night's World of Outlaws Sprint Car Series event at Kennedale Speedway Park in Texas killed one track official and seriously injured another, prompting the cancellation of the Cowtown Classic finale. The fatal accident — which occurred as safety crews responded to a driver's flip in the infield — raises difficult questions about the risks faced by the largely volunteer workforce that keeps grassroots motorsport running, even as the series had been expanding its safety initiatives.