BaseForm is the research project funded by the European Union's Research Fund for Coal and Steel (RFCS) research programme. The aim of the project is to improve the cold formability of Advanced High Strength bainitic steels for automotive application by controlling the presence of secondary phases and optimizing the microstructure. This means to combine high yield strength with favorable ductility in tension and hole expansion tests. In bainitic microstructures, a crucial, but poorly understood, role is played by second-phase constituents like martensite and retained austenite. The understanding of the mechanisms of microstructure formation, deformation and damage processes can lead to a better control of these properties. Guidelines for producing bainitic advance high strength steels with these favorable properties will be delivered.