Most cars will not flip easily if their rear tire hits the curb during over steer because of the low center of gravity. Other SUV would flip over however I think most are prone to under steer. The issue here is that the traction control system is not stopping the prado from going into over steer quick enough. The discovery and other SUV have this system. BTW its weird it happens on the prado and not 4runner, they its the same chassis.