This paper reports on a research effort which seeks to dramatically reduce Emergency Medical Services (EMS) response time by developing and testing an Automated Crash Notification System (ACN) – an advanced in-vehicle system which automatically transmits the location and severity of a crash to EMS personnel. Existing ACN systems are expensive, tend to be available only for luxury car models and are not, in general, suitable for retrofit. This paper discusses the design, development, and testing of a new approach to ACN which combines emerging low cost single chip / chip sets for wireless Web communication, GPS position location and crash detection for low cost Automated Crash Notification.