Even though I don't really play F1 2014 anymore it's always good to see people like yourself modding the game.
2016 we saw the best ever track mods done by NeffO76 and some help from myself.
I would recommend that you get permission from him to update his tracks with 2017 banners.
Hungary was one of my favorite track mods, new tarmac surface, realistic tire barriers, reworked building textures, new curbes, new tree textures, lighting and so much more was done to make it the perfect track.
http://www.racedepartment.com/downloads/neffo%C2%B4s-f1-2014-season-2016-hungary-budapest-gp-trackupd-1-0.11508/
http://abload.de/image.php?img=f1_2014-2016-10-29-08ntuwc.jpg