the instruction booklet of all versions. Although the game's 3D polygonal graphics are its main highlight, producer Shigeru Miyamoto also had its designers to place an emphasis on realistic vehicle dynamics. For instance, the F-Type's center of gravity is set at the rear of its body. The direction, weight and force applied by each tire to the road surface was made different, making it quicker and easier for the car's tail to swing out when cornering compared to other vehicles. Miyamoto stated that the player could notice these more subtle details by mastering each vehicle. During early versions of the game, the 2WD vehicle was not a part of the car roster. In its place was a three-wheeled vehicle called the 3WD, bearing a color scheme very close to the 4WD's blue paint job. Marketing Two different television commercials were made and aired: one for Japan and one for North America and Europe. The Japanese commercial was a short Japanese animation showing the vehicles from the game in action along with gameplay footage of the game itself. It was narrated by Akira Kamiya. In the commercial for North America and Europe, it showed a police officer talking to the viewers (as the driver) who he thinks are breaking the law(s) while some gameplay footage of the game itself were shown. There were two slightly different versions of the English commercial. Around the time Stunt Race FX was released in the United States, Nintendo of America teamed up with Kellogg's and Mattel to give away a promotional, Hot Wheels brand, F-Type race car to people who mailed two proofs from boxes of Apple Jacks to Kellogg's to receive it for free. The television commercial for it showed the toy car move across a kitchen table in front of a box of Apple Jacks while a young, blonde-haired boy wearing glasses looks at the toy car from behind the box of Apple Jacks. At the same time, the announcer in the commercial said: "Now you can get the Super NES Stunt Race FX car free, with two proofs from Kellogg's Apple Jacks", followed by a pit crew refilling the boy's bowl with Apple Jacks and milk and taking care of other things around him like clearing his glasses while the announcer said: "It's almost like the real thing". The limited-edition F-Type car have been quite rare, especially if still factory-sealed. It is