GM marketing. They purchased the hummer brand from AM General. OG Hummer (later renamed H1) was based on AM General’s military Humvee design, but released to the civilian market. H2 and H3 were designed by GM for mass marketing. Can be seen in the price. H1 nearly 10x more than H2 and H3.
And all that data probably takes up less room than a few pictures, could easily be stored locally, and encrypted locally before backing up on a server. But why give individuals control and privacy over their own behavior and history when you can sell it to anyone and keep the profits for yourself? /s