Simplify the following text for a Grade 4 native English-speaking person.
Original: Thus the driver can not lean over in the turns to overcome the centripetal forces , instead , to make sure the sidecar does not flip over , the passenger leans out ( of the sidecar ) as much as possible in the corners .
Simplified: The driver can not lean over in the turns . To make sure that the sidecar does not flip over , the passenger leans out of the sidecar when they are in the corners .