magnetic interference on the other side cause the trend into high level of system integration for new electronic sysrems* Such Optimized systems are based On three Electronic systemscontributesignificantly to the vehicle's safety and comfort. They provide higher efficiency and allow emission reduction. From an early substitution of mechanical switches by single transistors, today's third generation systems, like antiskid braking, electronic suspension or 4 wheel steering, consist of complex VLSI circuits. They apply different semiconductor technologies for smart sensors and power ICs. Vehicles are becoming with ambient intelligent transportation and information systems with a temperatures from -40'C up to 125'C and the extreme high demand on application specific circuits based on optimized processes. High level design methodologies Operating conditions with to 150 On together with advanced technologies will contribute to the simal and power lines =quires specific automotive ICs ever-increasing complexity of electronics in cars.for most applications. They are often based on dedicated