Speed  and alcohol are rightfully targeted as major causes of road accidents, but another deadly factor - falling asleep at the wheel - is not always given the profile it deserves in developing strategies to combat the road toll. In an effort to make driving safer for both the occupants of the vehicle and their fellow road users, Mercedes-Benz is working on an amzing system that recognizes tiredness-related changes in personal driving style and warns the sleepy driver when it's time to take a break. Now entering the final stages of development and expected to go into series production in early  2009, the Attention Assist system constantly monitors typical driving patterns to establish an individual profile and makes a decision on whether the driver is becoming tired when there is deviation from this alarmed saved data.