https://www.cnet.com/roadshow/news/mercedes-benz-eq-formula-e-geneva-motor-show/

Formula E boasts FanBoost, where fans vote for their favorite teams on social media. The top five winners receive a temporary power boost.

For its debut under the klieg lights at the Geneva Motor Show, the EQ Silver Arrow 01 is being presented not in its final sponsor livery, but instead in a special "'teaser livery' that provides an idea of the team's Formula campaign to come." In other words, Mercedes isn't ready to talk about its partners just yet.