Hence the disclaimer of "actual product and colors may vary".

I don't understand... if this was the one toy that was designed to be Ruckus BY Hasbro before changing it to Offroad, then why not use Hasbro's colour scheme.
And if Hasbro didn't have a colour scheme planned out before changing their minds on that toy, then FunPub are trying too hard to match the Gen1 toy.
So far the entire front of the vehicle and the arms (sides of the vehicle) of the toy have different colours on different sides, so it will require a lot of paint, which costs a lot. They don't need the cream colouring inside the front of the car section, because having it behind the robot head is not a priority. It's there to homage the shoulder guns of the original toy, but since this toy doesn't have shoulder guns, it will look wrong having that colour sitting so far behind the head, where it can benefit from a dark colour to be ignored (like the Japanese Nightbird toy that has the car parts behind the head black, to keep the eye focused on the thin petite female robot in front).