This game isn't particularly bad, it's just that everything this game has to offer has been done better by someone else.
Gran Turismo: The game has pretty good graphics, and a wide variety of cars and tracks. Gran Turismo, however, has even better graphics and nearly 10 times the cars and 5 times the tracks.
Burnout: Supercar appears to be creative from its story and world map design, but with a closer look, you'll discover that these are both clearly copied off of Burnout.
Enthusia and Jak: Supercar tries to make the game look spacy and futuritic by including "new" physcis that make it more difficult, yet are strangely entertaining. These physics have already been perfected by the Jak series and Enthusia: Professional Racing.
Midnight Club: Supercar tries to make "it" truly your car by providing a cornucopia of customization modes, which were very obviously stolen from the Midnight Club series.
Need for Speed: This game tries to have a "story". Too late. Need for Speed already patented that.
Overall, a game with no replay value, a crappy soundtrack, and every little detail copied from other games deserves what a low score it gets. It should take up a spot on no PS2 owner's library.