* Pops telling Speed that [[spoiler:he can come home anytime, despite Pops disagreeing with why he's leaving.]] This borders on TearJerker territory when you remember that [[spoiler:the last thing Pops told Rex was that if he left, he was no longer welcome in the Racer home.]]
* Racer X anytime he compliments Speed, especially the montage at the end that reveals [[spoiler: his SecretIdentity as the long-thought-dead Rex Racer.]]
* Sparky and Speed having their last conversation between the last race.
-->'''Sparky:''' [I] just wanted to say thanks, for what could be the most exciting moment of my life.
-->'''Speed:''' Couldn't have gotten here without you.
-->'''Sparky:''' I'm looking forward to that cold milk.
-->'''Speed:''' Me, too.
** Note how they're not even questioning whether or not they ''will'' win, but are instead anticipating sharing the moment together, as a family. And for all intents and purposes Sparky ''is'' a member of the family.
* The very first race shows Speed racing against [[spoiler:the memory of his brother, who set the fastest ever time on that course]]. As he approaches the finish line, you see the two neck-and-neck until Speed [[spoiler:eases off the gas, allowing Rex's record to stand.]]
* At one point, Taejo is flipping out at Speed and Racer X for the desert race. Speed reminds him that he was just "saving your ass". Taejo quickly throws a punch at Speed, only for Racer X to instantly catch it. [[BigBrotherInstinct Rex looks out for his little brother, no matter what.]]
* When Taejo's sister [[spoiler:makes up for his double-crossing of Speed and uses LoopholeAbuse to help Speed enter the Grand Prix.]]