I was pleasantly surprised at the evident effort that went into the design of this film: although it is pretty obviously computer generated, it has something of a hand-drawn look. The action is pretty much constant, and there is just enough story to hold it together. My six-year-old "Hot Wheels" fan, (recently graduated from Thomas the Tank Engine), ate it up.
Plot summary: a sort-of-mad scientist opens a portal to "Highway 35," a futuristic orange-paved race track built ages ago by the "Accelerons." The scientist picks a handful of racing pros and at least one 16-year-old skater dude. The racers travel through volcanoes, ice-caves, deserts, and other assorted dangers in search of the "Wheel of Power."