If this has been asked previously then I apologise but I guess I'm too lazy to search through all the forums.
Anyway, if you research everything you can with the Research Facility, for example, do you keep the researched items like KERS and DRS if you sell the facility? If so then I might as well take the $5M and spend it elsewhere. Personally I hope that's not the case becasue I think it would be a pretty silly thing if it was possible to do it.
Thanks