2. To drive forward and backward directed to test, select 2,
1, the drive forward and backward walking out in the car that has a length of around 10 - 12 meters and has 2 main place parallel row distance measured from the width of the vehicle plus added to the other side of 50 cm do not hit or drive to push the main place
2, the drive forward and backward in the channel has been set up to 2.5 meters wide, the wheels must not be over the line and do not hit or climbing the edge of
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