Gabby, Stripes, Starla, Darington, Zeg and Watts don't appear in this episode.
This is the second episode with "Grand Prix" in the title after Axle City Grand Prix.
This is the second time Blaze turns into a submarine after The Super-Size Prize.
This is the second episode to take place predominantly underwater after The Great Animal Crown.
This is the first episode to air in 2020, and also the first episode of the 20s decade.
The Deep Sea Grand Prix is the seventh race where Blaze and Crusher are the only participants after the Team Truck Challenge, the Dragon Island Duel, the Royal Race, the Axle City Grand Prix, the Hundred Mile Race and the 100 Egg Challenge in the episode of the same name.
Like its past appearance, Pickle cannot find the "speed up" button and every button pressed causes something weird to drop on Crusher or stick to him.
The "speed up" button is here called the "go faster" button.
In production order, this is the tenth episode of the fifth season, whereas the first episode to feature the new WildBrain logo at the end, making this the first to be produced under said name after DHX's rebrand on September 23, 2019.
When this aired on Nickelodeon, it uses the DHX Media Logo card, meaning that this episode had released before the rename.
This is the second time Crusher turns a sign to point the wrong way and Blaze falls for it, after Race to Eagle Rock. Though he actually realizes he went the wrong way this time.
Even though Blaze races against Crusher, they never actually see each other throughout the episode.
This episode was uploaded by the official YouTube Channel; on March 27, 2020. This is the second episode available on YouTube. The first being The Driving Force.
This is the last episode to date to air at 12:00 PM until Season Six's The Snow Spectacular. PAW Patrol later took up its former airtime.
Crusher didn't bother to complain about losing in this episode.
This is the final episode produced in 2019 according to the end credits.
The "which object will float" segment is lifted almost entirely from The Great Animal Crown, only with the Trapperfish instead of the robo-octopus and Blaze as a submarine instead of a shark. Similarly, the sharkflower tunnel scenario is lifted from Falcon Quest, with the same adjustments.
Running Gags[]
Like The Great Animal Crown, Pickle looking for the go-faster button, but, when he presses a button an accessory falls on Crusher.
Allusions[]
The bubble transitions bear an uncanny reminiscent of the long-time Nickelodeon show, SpongeBob SquarePants.
Goofs[]
At the end of the episode, fireworks go off over the giant sandcastle, but in real-life it's not safe for fireworks to go off underwater, as this could fog the water and cause potential harm to the sea creatures.
When Crusher wakes up the shark flowers, he deploys a megaphone, but water does not pour in the submarine for some reason.
Errors in the closed-captioning:
When the first crab says "Blaze, you made it!" The captions list "Blaze" as "Oh".
