To output sufficient torque at a time of start of rotation of a drive shaft in relation to a power output device outputting power to the drive shaft and an automobile loaded with the same and having wheels mechanically connected to a drive shaft.

A power distribution integration mechanism 30 is composed of two planetary gears P1, P2 and is connected to an engine, two motors MG1, MG2 and a drive shaft 65. And a brake B1 is connected to a rotary shaft having the motor MG2 connected thereto. When large power is requested on a drive shaft 65 rotating at relatively low speed and large braking force is requested on a rotating shaft of the motor MG2, part of the braking force is applied by the brake B1 and rest of braking force is applied by the motor MG2. Consequently, requested braking force can be applied even if large braking force exceeding a rated value of the motor MG2 is requested.

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