In case your car isn’t equipped with a blind-spot warning system (popular on new vehicles) the patented Allview Mirror System (AMS) is a compelling alternative. The manufacturer states that the AMS is unlike an image-distorting convex mirror (the one that states “Objects in Mirror Are Closer Than They Appear”). The flat, panoramic surface of the AMS increases your rearward field of vision, without any distortion, to a point where you’re able to observe multiple lanes of traffic without turning your head to check the outside mirrors. In turn this allows you to more safely merge and change lanes. The AMS sells for $60 (a version specifically developed for racing costs $100). Get the full picture at www.allviewmirror.com.