- STP 500
The STP® brand partnered with Martinsville (VA) Speedway to present the STP® 500 on March 29, 2015. The NASCAR® Sprint Cup Series race was the third that STP sponsored at Martinsville. For Virginia native Denny Hamlin, this was his fifth win at one of NASCAR’s most historic tracks.
Click to see Photo Gallery from 2015 STP® 500
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