US-Canadian Challenge Coming to Mobile International Speedway

Canada’s SUPERSEAL Construction Products puts the International back into Mobile International Speedway with a special US-Canadian Challenge that begins at Auto Clearing Speedway in Saskatoon, Canada on September 1^st and culminates in Mobile on September 22^nd with the SUPERSEAL 150 winner picking up a $10,000 pay day and coveted ride in the NASCAR camping World Truck Series race at Martinsville, Virginia.

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