In this paper we discuss the development and evolution of Trinity College's ALVIN robot, which has competed in the AUVSI Intelligent Ground Vehicle Competition (IGVC) for the last four years. We focus the technical discussion on ALVIN's mechanical, sensing, computing, and image processing systems. The paper also reports the results of an educational outcomes survey, which indicates that the multidisciplinary ALVIN project has challenged and motivated students and encouraged their professional growth.