How reducing horsepower hasn't cut down on speed
RELATED: Visit Inside Track presented by Mobil 1 for more great content
How has NASCAR reduced horsepower in the cars yet still managed to maintain top speeds during the 2015 season?
Join Gene Stefanyshyn, NASCAR's Senior VP, Innovation and Racing Development, as he discusses how the sanctioning body is working hard to provide better racing for the fans.
See a NASCAR wind tunnel in action and get the behind-the-scenes look at the 2015 changes in the latest video presented by Mobil 1.
Watch today's video, which is part of NASCAR Inside Track presented by Mobil 1, then come back throughout the season for more in-depth looks at NASCAR from Mobil 1.