It's remarkable that the maiden season of Extreme E will feature three Formula 1 world champions thanks to the involvement of Messrs Lewis Hamilton, Nico Rosberg and now Jenson Button.
Only when Hamilton renews his Mercedes contract for 2021 will F1 itself surpass the title-winning headcount, with the returning Fernando Alonso ranking alongside Sebastian Vettel and Kimi Raikkonen. As statements go, it's an astonishing feat for XE and comes all before an electric motor has whirred in anger.
Of course, Hamilton and his former Silver Arrows sparring partner Rosberg won't actually race in XE. They're both team owners and even then, will manage the day-to-day operations of their respective X44 and Rosberg Xtreme Racing squads at arm's length.