The Mach is a racing car loaded with a new engine "X" specially developed and built by a man named Kenich Hibiki who was a racing driver as well as a motor engineer. However, in a test driving made prior to its completion, he was involved in an accident and judged as dead. Meanwhile his father Daisuke who was watching the test driving all the way recovered the wrecked car as his son`s memento. A few years later the damaged car rebuilt by him revives as the new Mach which comes to participate in Grand Prix. This time, however, for the purpose to protect the driver from a possible accident, the new car is equipped with a safety system called "Safety Seven" with seven guarding devices. Also, it is loaded with the engine "X" that miraculously survived the tragic accident. Now its driver is Go, younger brother of Kenichi, who is determined to succeed to his brother`s will. In fact, he successfully participates in Grand Prix and keeps growing up to be a top racer of the world. (Source: official site)

Accumulating an impressive series of victories with his AE86, Takumi Fujiwara has imposed himself as street racing's newest rising star. However, his newly found confidence of winning at his home turf of Mount Akina has been put in jeopardy by a new Emperor team exclusively using a car model favored by most professional racing pilots: the Mitsubishi four-wheel drive Lancer Evolutions—also known as Lan Evos. The Emperor team leader, Kyouichi Sudou, looks down on Takumi and regards him as an inferior pilot for driving an antique car that lacks the makings of a true modern race car. Kyouichi's elitist philosophy is also the reason why his team is only made of Lan Evo drivers. Will Takumi be able to keep his perfect track record intact against the highly skilled and mechanically superior Emperor team, or does his hot streak end here? [Written by MAL Rewrite]

An epilogue of Master of Torque shows what the series' characters are up to one year after the events of Season 3 at the foot of Mt. Fuji. (Source: Official Email)

Rick Wheeler was a police detective who got into a fatal car accident while pursuing the criminal Zoda. He was placed into artificial coldsleep for 150 years. Wheeler is brought back to life by Jody Summer and Dr. Stewart, who work with a group of good racers who try to keep prize money out of the hands of unsavory people like the Dark Million Organization run by Black Shadow and Deathborn.