The Racing Brothers Let's & Go!! (爆走兄弟レッツ&ゴー!!) is a manga series created by Tetsuhiro Koshita, first serialized in Shogakukan's CoroCoro Comic magazine from July 1994 to October 1999. The manga centers on Rettsu and Go Seiba, brothers who focus on the world of miniature car racing known as Mini 4WD. It is created as a tie-in to Tamiya's Mini 4WD franchise (mainly Fully Cowled, Mechanical and Aero), and it is the second series to center on the franchise since Dash! Yonkuro.
Three anime adaptations of the manga were produced by Xebec from 1996 to 1998, each of which consisting of three 51-episode series, and was also made into several games. The series also released various merchandise, including CDs, trading cards, stickers, and even die-cast cars. In 2014, a sequel series, Return, Racers, began serialization in Shogakukan's CoroCoro Aniki magazine, 20 years after the original series' serialization. A spinoff manga, which focuses on Tsubasa, was serialized on CoroCoro Ichiban in August 2017.
Plot
Mini 4WD racing is an interesting hobby where kids and adults compete using customized motorized miniature cars. Every year, competitions revolving around the hobby circulated around the world, where kids and adults test out their spirit and passion for racing, with companies developing new technologies and innovations for Mini 4WD cars. The story revolves around the competitive Seiba Brothers: Go and Rettsu, who were once constantly arguing with each other to see who between them is the best racer. However, one day after a community-sponsored race they both met Dr. Tsuchiya, the head of the Tsuchiya Racing Factory who gave them two Mini 4WD Cars from the prototype Saber Series: Sonic Saber and Magnum Saber.