Says to me the growth in rental and corp car fleets, and in general grey/ white being cheaper and ppl not caring too much about color since the mid ninety’s. 

Also … greys trending down and white trending up speaks to white being the more attractive of the neutrals, and still the cheap option. 

Black is black. Always premium. Always black. Trends down after “Great Recession”, along with the greys. 

And the brown/tan blip. I remember that. Still my fav color.