
A blind-spot warning (BSW) system can reduce both stress and the risk of a crash by helping you keep tabs on vehicles over your shoulder and out of sight. Until recently, the only way to get one was to invest in a new car.

A blind-spot warning (BSW) system can reduce both stress and the risk of a crash by helping you keep tabs on vehicles over your shoulder and out of sight. Until recently, the only way to get one was to invest in a new car.