Where did Aaron's brother go in a dragon four-wheel drive?

He's with the magic bat. Formerly known as Wei, he is Lun's younger brother. When Wei Chao wanted to quit the four-wheel drive industry because of the fire, Teddy boy ran away from home obviously dissatisfied with his father's cowardice, but actually went to help the Dark Devil (that is, Huo Zhen! ~) work, in exchange for the dark Lord's leniency towards dad's debt. Two years ago, the dark devil sent him abroad to study professional four-wheel drive technology. After returning home, he helped the dark devil design racing cars, knowing that he couldn't go home until he won the national championship, and he couldn't recognize his family during the period. A Fei left his champion car alien to Aaron when he ran away from home, and then silently helped him. Wei, a genius of small four-wheel drive, is the national champion of small four-wheel drive. Unexpectedly, this also indirectly led to the break of father Chao Wei and partner Huo Zhen, who are also research and development experts of mini four-wheel drive. A big fire plunged Wei Chao into the trough of his life. In order to save his father and family, Wei resolutely ran away from home and left his beloved champion chariot "Alien" to his favorite brother. Two years later, my brother's departure remained a mystery to Wei Tianlong ... Later, in the four-wheel drive competition, Wei Tianlong only used his brother's chariot. Only in this way can he feel that he is fighting side by side with his brother, until one day, the alien is finally defeated by another four-wheel drive driver and completely eliminated. This impact made Wei Tianlong suddenly feel lonely and helpless, and even thought about giving up his beloved mini four-wheel drive. Fortunately, a group of friends around him constantly encouraged and supported him, so Wei Tianlong cheered up again. He knows that he will work hard for the national championship, which is also the purpose of his brother leaving the chariot to him. He thought maybe, when he lifted the championship trophy, his fraternity would come back to him. However, the difficulties ahead are beyond Wei Tianlong's imagination. Huo Zhenting, who left his father that year, has now become a powerful new force in the mini-4x4 industry. His racing drivers and chariots are super powerful and unfathomable, and they are all here to defeat Wei Tianlong. Breaking through many difficulties, challenging countless opponents, winning, and looking forward to the day when I meet my brother again is definitely not an easy road. In every race, every racer must try his best to adjust the setting of the chariot on the basis of accurate judgment of the track, and then flexibly control it at the scene, so that his chariot can finish the race at the fastest speed and run to the finish line. However, there are wins and losses in the race, and there are ups and downs in life. The teenagers in the story also have to face the impact of failure and interpersonal conflict. Aaron, the protagonist of the story, tries to communicate with friends and solve problems through competitions.