Disclosed herein are a composite material and a method of manufacturing a vehicle interior material using the same. The composite material is manufactured by laminating first and second substrates which each include a felt layer consisting of a natural fiber and a synthetic fiber, a polyolefin film layer, and a thermosetting resin coating layer. Through such a structure, it is possible to implement high stiffness and a reduction in weight, to prevent crushing, occurrence of irregularity, breaking, etc. due to expression of an impregnated resin from front and back surfaces of a conventional material, and to easily attach a bracket and a surface material in a post-treatment process.

An outer panel of a motor vehicle tailgate intended to be glued to a liner, the outer panel including a main body, a recess forming an optical unit housing and having a lower wall, and a bonding wall extending from the lower wall and including an end portion connected to an upper edge of the outer panel. A first connecting wall extends from the end portion of the bonding wall to an inner face of the main body so as to form a second bonding ramp of the outer panel. An end of the first connecting wall is attached to the inner face of the main body having a thickness less than that of the upper wall of the main body.