Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for retargeting content in a search environment. A vehicle operating cost function is defined, based on a plurality of environmental parameters, vehicle parameters, vehicle operating parameters and route parameters. An application session is established, through an application client of the user, on the IMPS server. The correction coefficient is set to \u201c1\u201d only when flags F2, F3 and F4 are all equal to zero.