If you want to watch them today, they are archived on various fan channels (search "AcceleRacers Micro Series 1 The Driver" on YouTube). For collectors, these episodes are your price guide—the car that survives the crash in Episode 2 is always the car worth the most money ten years later.
They explain how the Racing Drones upgraded their tires in the Lava Realm and how Vert Wheeler broke his leg, a detail mentioned but not shown in the main films. Hot Wheels AcceleRacers 1-4 Micro-series
Released in 2005 exclusively on Mattel’s official website (a bold move for the dial-up era) and later included as DVD extras, the micro-series consists of four short films, each running approximately 5 to 7 minutes. If you want to watch them today, they
Fans see Porkchop win the Cavern Realm and witness the tactical clashes between the Teku and Metal Maniacs in environments like the Cliffside and Ice Realms . Released in 2005 exclusively on Mattel’s official website