Buster Sonic (バスターソニック Basutā Sonikku) is the 4th series of 'Sonic' Fully Cowled Mini 4WD line. Buster Sonic is one of the machines owned by Retsu Seiba, which acts as a final upgrade for Retsu during Bakusō Kyōdai Let's & Go!! WGP.
Bakusō Kyōdai Let's & Go!! WGPEdit
With Hurricane Sonic being overshadowed by Go's Beat Magnum and a race against Odins resulting in Retsu breaking his ankle, Retsu designed the Buster Sonic when he was hospitalized, hoping to catch up with his team mates. It debuts in episode 45 of the WGP arc, and it is used for the rest of anime. In the manga version of Bakusō Kyōdai Let's & Go!! MAX, the machine is eventually be replaced by its successor, Blitzer Sonic, which is an Aero car with Super X chassis, much like almost every other car in the show.
Buster Sonic is equipped with a pair of visible suspensions in the front of the car. These piston-looking devices can move up and down to adjust wheel base front ride height. When the piston is active, the front body is lowered and the front tires are pushed backward. This tremendously increases the car's grip during high speed corners while retain high speed out them when the pistons deactivate themselves. This technique is later named as Buster Turn.
Buster Sonic (バスターソニック Basutā Sonikku) had the body shape with half covered all tire, wide spoiler, and utilizes Super TZ Chassis. The Premium version of the car (released in November 2014) used the modern AR Chassis instead.
The color of the car's body plate is white, with the signature red and green of Sonic cars decorating the machine, and it features a new headlight design.
All Mini 4WD require a pair of AA sized batteries. In it's standard configuration, the Super TZ version of Buster Sonic can only use small or medium diameter rollers. Larger rollers can be fitted by using a Grade-Up bumper. This issue was rectified on the Premium AR Chassis version.
Bakusō Kyōdai Let's & Go!! Eternal WingsEdit
The Buster Sonic is Retsu's default car in the Eternal Wings video game, and it is the car he uses in the story mode.
In the game, Buster Sonic had a maximum direction cornering, avarage rotation, average brake, so have an easier controlling than other, average speed and average braking.
The Buster Turn, as depicted in game, causes the car to be covered by a flaming firebird; Fire Stinger also uses the same firebird.