Name an accessory that women and men wish were an accessory in their automobiles?

Ladies wore headdresses and diamond necklaces and men wore feathered hats...

Perhaps some men might. These are usually guys who wish to be female. There are some men who do dress like the women they see.

doggerel

I'm not sure there is one. There is an old saying though, and that is "It's better to be an old mans darling, than a young mans slave". So you could say "an old mans darling". Where that saying...

gynephobia