This paper introduces DriveCoach, a smart driving assistance framework designed to enhance road safety. It provides a holistic approach to predicting and mitigating a wide range of driving risks. Utilizing data from multiple sources, our multimodal models identify eleven types of near-miss risks and provide personalized, context-aware guidance. DriveCoach offers real-time on-board assistance and post-drive coaching, dynamically tailored to specific users. Demonstrations in a driving simulator show DriveCoach’s potential to reduce accidents and enhance road safety, contributing to safer, intelligent transportation systems.