Abstract: A concavo-convex replacement mirror permanently securable coextensively atop a flat plane mirror provided as an original equipment side-mount, rear-view mirror on a motor vehicle. The size and shape of the replacement mirror is predetermined so as to closely correspond to that of the original equipment mirror such that, when operatively positioned, the replacement mirror completely covers and conceals the original equipment mirror. The rear face of the replacement mirror is provided with coplanar mounting portions surface ground at the mirror periphery for conformal abutment with corresponding portions of the flat original equipment mirror. A pressure sensitive adhesive is interposed between the replacement mirror and the original equipment mirror to nonreleasably secure the mirrors to one another and thereby provide an expanded field of vision with respect to that available with the original equipment mirror.