(1) An automobile with advanced electronics. Microprocessors have been used in car engines since the late 1960s and have steadily increased in usage throughout the engine and drivetrain to improve stability, braking and general comfort. The 1990s brought enhancements such as GPS navigation, reverse sensing systems and night vision (able to visualize animals and people beyond normal human range). The 2000s added assisted parking, Web and email access, voice control, smart card activation instead of keys and systems that keep the vehicle a safe distance from cars and objects in its path. Of course, the ultimate smart car is the one that drives itself (see self-driving car). See embedded system and connected car.