While some simply hailed the new paint job's visual appeal, it is actually a tip of the hat to the Black Lives Matter political movement.
"Lewis is very active in Black Lives Matter," team boss Toto Wolff, who is yet to reach a new deal with Hamilton for 2021 and beyond, told Kurier newspaper.
"We coordinated what we can do on the topic. He (Hamilton) called me about a month ago and said 'two Instagram posts is not enough'. Together, we gave birth to the idea of the black car," the Austrian added.
Wolff also told Der Standard newspaper: "The board of directors of Daimler and the sponsors immediately gave their support."
He denies that it is simply an empty symbolic gesture, insisting: "The right convictions are not enough if we remain silent.
"We therefore want to use our voice and our platform to campaign for respect and equality."
Wolff admitted that women and minorities are grossly under-represented at the title-winning team, and vowed to do something about it.
"We will not set quotas, but we will set goals," he said.
"It will be discussed in the Grand Prix Drivers' Association after the drivers' briefing on Friday," he said.
"We will do whatever we can to show that we care and respect everyone."