Radar sensors operating in the 76 81 GHz range are considered as essential parts of future vehicle safety systems and could significantly contribute in reducing the number of traffic casualties. Yet high manufacturing costs prevented their broad utilization in cars in the past. Today's SiGe processes show high potential to bring down cost of millimeter (mm)-wave systems into a range where they become attractive for mid- to low-priced cars. However, despite the impressing results achieved so far there is still a lot of work left to be done to achieve the final goal of “affordable radar safety for all”.