A road surface friction coefficient .mu. is calculated based on a detected
lateral acceleration and a front-rear acceleration, and a roll angle is
calculated using a roll rate. Further, a maximum engine torque value that
can be applied to a drive wheel without causing slipping thereof is
calculated based on the road surface friction coefficient .mu. and a gear
ratio. A torque transmission rate that indicates a reduction rate for
engine output is set so as to reduce in accordance with a roll angle, and
a target engine torque value is calculated by correcting the maximum
engine torque value using the torque transmission rate. Accordingly,
adjustment is executed such that the engine output is made smaller as the
roll angle increases. Thus, abrupt changes in vehicle behavior are not
caused by sudden starting of control, and it is possible to inhibit drive
feeling from deteriorating.