In September 2001, new students undertake to ensure continuity of ambitious project and begin the design of future vehicle Esteban II. The first year allows the complete overhaul of aerodynamic, mechanical and electrical components of the car and make the design by computer. The second year is used for construction, research partners and the preparation of the race CSA 2003. Esteban II team also strengthened its position over alternative energy by participating in various events and receiving several awards .
The American Solar Challenge 2003 was held in July 2003, and once again, the team failed to qualify for the race. The car was deemed too unstable to take the road to 3700 km.
Again, this does not herald the end of the project, but rather the beginning of two years of hard work to participate in the next race in July 2005.