Parents need to know that the stars of these DVDs are really the cars and the tracks they drive on. The plot has a lot of complicated details, but breaks down to "robots bad, people good" and goes from there. Two rival driving gangs get into frequent verbal, physical, and behind-the-wheel confrontations, but work together nominally to address a bigger threat. The only two female characters play secondary roles. Lots of bang-up action, not much educational value.
Positive messages:Two opposing driving teams are extremely competitive and mouthy toward each other, but work together -- to a small degree -- to achieve a common good. Most characters seem ready to get into physical confrontations at the slightest provocation. Glorification of street racing culture.
Violence & scariness:Lots of loud and colorful car crashes and explosions that result in little permanent damage (though an opening scene clearly pictures an animated character struggling to escape a damaged car.) Some fist fighting.
this series starts from Hot wheels highways 35 to really understand it you should watch these first. the reason the two gangs Teku and Metal Maniacs fight so much is the leader of the Metal Maniacs is accused to killing Teku leader Nolo Pasaro's brother Tone Pasaro. As the series progress though the four movies more about the teams are relayed and the point of the racing realms. i highly recommend watching 3 or all of them so you have seen the whole series.
it goes
Hotwheels Highway 35
AcceleRacers
Ignition
Speed of Silence
Breaking Point
The Ultimate Race