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Based on a seinen manga by Kusunoki Michiharu serialised in Young Magazine. The story gets its roots from the actual street racing that occurs on Tokyo's Shuto Expressway, one stretch of which is known as the "Wangan", literally meaning "bay side" (although it is generally used to refer to the freeway), the longest, straightest road in the entire country. Of course, there's also lots of traffic to contend with, including a fair number of heavy trucks. Because of this, the action is inherently hazardous, and wrecks are common. Blown engines are also a frequent hazard, especially with the extreme-high power engines. One day, Akio Asakura, a third year high school student, is driving his Fairlady Z (Z31) and is challenged by Tatsuya Shima, a doctor, in his black Porsche 964 Turbo (nicknamed the "BlackBird"). With a friend in the passenger seat and two girls in the back, Akio pitifully tries to win, but is defeated. Determined to become faster, he goes to the junkyard to buy parts for his car, when he sees a pristine, unscratched midnight blue Fairlady Z (S30) in the junkyard. Intrigued as to why such a machine is about to be junked, he buys it. He soon finds that the car is unnaturally fast due to a tuned L28 engine, bored and stroked to 3.1 liters combined with twin turbos, which produces 620bhp. He also finds that all of the car's previous owners had unfortunate accidents in it, starting with the first owner's death. The manga follows Akio's various encounters, though the central plot revolves around his constant battle with the BlackBird for superiority. (Source: AniDB)

Mechadock is a powerful race car obtained from a simple economy car, which is able to race on any ground.

Take the characters from a number of sci-fi based animes, a stage not unlike "Wacky Races," super deformed madness, and general insanity and what you get is Scramble Wars. While Scramble Wars does include characters from the original Bubblegum Crisis, Gall Force and Genesis Survivor Gaiarth, it also has a few other characters from other animes such as AD Police and Riding Bean. It doesn't matter if you loved or hated any of these series, as long as you've seen at least one of them you'll have a great time watching this, though the insanity is so generic that it really doesn't matter if you haven't seen any of the animes featured in Scramble Wars. Wacky Races! No not really, but close enough. Genom is holding a race; the winner will receive the Genom Trophy! Woohoo! Yay! Enter, Priss on her Motoroid, Linna and Nene, Sylia and Mackie, a Boomer... A Boomer?... okay... and characters from other animes already mentioned a million times. All will be racing against each other to win this prestigious trophy for some reason. And all of them will do anything to win it... (Source: AniDB)

Takumi Fujiwara is a skilled street racer, but he suffers a crushing loss against the team Emperor's leader Kyoichi Sudou due to his AE86 experiencing an engine failure. Doubting his abilities, the recent high school graduate is then approached by the Akagi RedSuns' team leader Ryousuke Takahashi, who proposes the formation of a professional street racing team. Although it would be the ideal way to improve as a street racer, Takumi remains undecided. Does the young street racer have what it takes to become a professional? Perhaps Ryousuke and the RedSuns can help him reevaluate his own doubts and misconceptions concerning street racing. However, first and foremost, Takumi decides to settle the score with Kyoichi Sudou... [Written by MAL Rewrite]