NASCAR, F1, IndyCar, Le Mans all have unique celebrations, here's how it all started.
NBC's experts also weigh in on the season's biggest surprise, the driver who has impressed them the most and storylines they'll be watching.
NASCAR Xfinity Series Highlights: Kyle Busch charges back to the lead following a speeding penalty to win at Bristol, his second victory of the week.
Fans have lamented the Formula One's hybrid power units since they were introduced to the sport in 2014, and many have hoped the series' post-2020 engine regulations will do away with them. But that unsurprisingly won't be the case.
Race fans collectively drooled when IndyCar unveiled how dramatically different its cars will look in 2018, but the new body kits don't only represent a massive step forward in terms of aesthetics.
Kyle Larson used a dramatic overtime restart to score his third win Cup of the season.
Team Penske driver won this race in 2015 and '16 after qualifying first.
As a kid, Truex dreamed of winning at Watkins Glen. Today, that dream became reality.