Smart cars will help make clean driving and fewer traffic jams a reality. But to get the most out of the technologies in terms of efficiency, we must design vehicles based on a full system analysis and work towards optimizing the parts of a vehicle that work together. At least 50% of the added value in new cars is achieved through microprocessors: electric, electromagnetic, and network components. The challenge in the automotive industry is to ensure that the integration of these embedded subsystems does not affect reliability, safety, or profitability. Creating a car like a computer on wheels will also require well-educated, multidisciplinary engineers.