 After being narrowly pipped to both titles in by Ferrari, the aim of 2001 was to get McLaren back on top.However, the season proved to be frustrating in more ways than one.The chassis was good, but it was not developed enough to keep pace with Ferrari or new rivals Williams and also suffered from niggling aerodynamic problems; the Mercedes-Benz engines were less powerful than Williams's BMW units and less reliable than Ferrari's in-house efforts; and the team did not do a good enough job regarding the return of electronic driver aids.