A power output of engine is restricted to become a power output which is calculated by using a first restriction accelerator operation degree when a brake operation with a brake pedal is detected in addition to an accelerator pedal operation with an accelerator pedal; and the power output of the engine is restricted to become a power output which is calculated by using a second restriction accelerator operation degree in place of the first restriction accelerator operation degree when an amount of change of the accelerator operation degree per unit time becomes larger than a preset certain value in a direction of depression of the accelerator pedal under a condition where the power output of the engine is restricted by using the first restriction accelerator operation degree, the second restriction accelerator operation degree being larger than the first restriction accelerator operation degree.