Vehicular driving device

A vehicular driving device comprising:

• a rotating electric machine;
• an output member that is coupled to and drives a wheel;
• a power transmission mechanism that transmits power between the rotating electric machine and the output member;
• and
• a case for accommodating the rotating electric machine, the power transmission mechanism, and oil, wherein
• an oil storage section in which oil is stored is formed in a lower part of the case,
• the case includes a heat transfer inhibiting section that is provided at a position in an up-down direction based on an oil level in the oil storage section in such a way as to extend in a horizontal direction, and
• the heat transfer inhibiting section has higher thermal resistance than a portion of the case being located on an upper side with respect to and adjacent to the heat transfer inhibiting section or a portion of the case being located on a lower side with respect to and adjacent to the heat transfer inhibiting section.