Bring back the "objects in mirror are closer then they appear" mirror

new trucks have flat mirrors not slightly convex mirrors("object in mirror are closer then they appear")  The field of few is literally have of a slightly convex mirror.  For me it is dangerous while plowing. I plow storage buildings and am constantly approaching building and posts while plowing at night.  I can not see the buildings at all in the big flat mirror and the little very convex mirror has no depth perception when dark.  With my racecar on a trailer I cannot see my trailer tires and the cars roof at the same time.  How can I safely monitor my load when I cant see it.