Cai Yuchen's maglev car is not real. At present, this kind of "maglev vehicle" has not been developed. The idea of the maglev train in the video comes from Cai Yuchen, a female college student in China. Later, after the idea was seen by the public, the public made a related car model based on this idea and made a promotional video for the model.

Research and development difficulty:

It is still very difficult to realize maglev train. The maglev vehicle must rely on abundant underground maglev veins to provide suspension power, but the geomagnetic veins with irregular magnetic poles cannot determine the orientation of N and S poles. That is to say, if permanent magnets with fixed magnetic poles are used, it is impossible to realize maglev vehicles by using the principle of "like charges repel each other".

In addition, because the maglev vehicle is suspended, it may have an ultra-high running speed without touching the ground, and even if it is developed, it may be banned from the road for safety reasons.

Moreover, the price problem is equally prominent. The cost of maglev vehicles can be very high. If the maglev vehicle is really put on the market, but the price is tens of millions, then it will be difficult to achieve popularization in the end.