Unit

A unit comprising:

• a rotating electrical machine;
• a shaft and a gear coaxially disposed with the rotating electrical machine and configured to rotate integrally with the rotating electrical machine;
• a differential gear connected downstream of the shaft;
• a differential case configured to accommodate the differential gear;
• and
• a grounding body in contact with the shaft, wherein
• the grounding body has a portion that overlaps the differential case when viewed in a radial direction, and
• the gear is located between the rotating electrical machine and the grounding body.