I made two cars for rubber tube car competition. The first one didn't work. I thought it would work, but it didn't beause the wheel of the car were unstable because it was bottle caps and it was not big enough and there was not enough force to make it go 2 meters. I liked that it was very light in weight and i made a wall so that the rubber tube can hit it but the force was too small. The second car was also very small Hotwheels car and i just taped the tube in the car, so i was disqualified and i didn't actually did any hard work on that one and it went 20 meters flying. If i were asked to make a new car i would change the whole car and make better wheels with rubber traction and pull the rubber tube hard enough so that it can go 10 meters and fixing the tube in the correct place is also important.
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