A vehicle turning motion control apparatus includes a turning condition
sensor to sense a turning condition of the vehicle; and a controller to
start a decelerating control to produce the braking force with a brake
actuator when the turning condition surpasses a deceleration start
threshold. There is further provided an accelerator operation quantity
sensor to sense a driver's accelerator operation quantity. The controller
adjusts the deceleration start threshold toward the turning performance
limit when the accelerator operation quantity increases, and to start a
preload or preliminary pressure control to produce a preload before the
deceleration control when the turning condition surpasses a preload start
threshold.