Like the 2015 liveries that people have made for Williams, it is not possible for it to be not mirrored. I'll add the helmets in the next update. The old colours I'll have another look at adding if I can find the correct file. Also are you running 1.2? Because 1.2.1 fixed the Williams garage names. Also Rexona logo isn't possible due to mapping.
I used the version 1.2.1 but I didnt use the environment folder, because I dont want to change anything in the F1 2015 game version.
Will there be more cars which get mirrored sponsors? Why is it so?
If Rexona isnt possible, could u make another sponsor on the side for Rexona and make the Williams more like the original?