A hybrid multi-material outerbelt reinforcement assembly includes a metal body having a first leg and a second leg oriented at an angle with respect to the first leg. The second leg is integrally connected to the first leg defining a junction. A polymeric material reinforcing rib has a rib end contacting the junction and has a rib body extending away from the junction and bisecting the angle between the first leg and the second leg. The reinforcing rib has a rib length extending for substantially an entire length of the metal body. Flanges are integrally connected to the reinforcing rib, each having a first flange portion and a second flange portion each contacting the metal body to mitigate against a torsional rotation of the metal body that increases or decreases the angle of the second leg with respect to the first leg.

A vehicle door structure has: a door inner panel that is made of resin and that, together with a door outer panel, structures a door main body portion having a substantially closed cross-sectional shape; a beam having a main body portion, that extends in a door longitudinal direction, and an extended portion that is made of metal and is provided in continuation with a length direction end portion of the main body portion, the beam being disposed within the closed cross-section of the door main body portion; and a bent portion that is bendingly formed at the extended portion, and that, as seen in plan view, is disposed further toward a door thickness direction outer side than the frame main body portion.