12/5/2016(Photo by Hurd Photography)
In a show of unity to grow winged sprint car racing in the Pacific Northwest and Central Montana, the Washington-based Summer Thunder Sprint Series has partnered with the Montana and Western Canada-based North-American Speed Association to create a special 11-race Northwest Challenge Series for teams in the Pacific Northwest, Central Montana and Western Canada.
The series will be comprised of select events from both STSS and NSA tours. Both series will have...
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