A fifth grader has created an air-powered car for a science fair, according to two videos on YouTube. The car has a range of .425 miles and a top speed of 10 MPH. There are two videos about the air car available below the fold. The first video, all about the creation of the car, includes the young boy welding the frame and getting the engine's pneumatic actuator timing right. The second video shows the child driving the vehicle on the street. Needless to say, the air-powered car won first place at the science fair. Watch out MDI, you've got competition.