see more

ROME, ITALY - APRIL 14: Sienna Miller (L) and FIA Formula E CEO Alejandro Agag attend the ABB FIA Formula E CBMM Niobium Rome E-Prix 2018 on April 14, 2018 in Rome, . (Photo by David M. Benett/Dave Benett/Getty Images for Formula E)

ROME, ITALY - APRIL 14:  Sienna Miller (L) and FIA Formula E CEO Alejandro Agag attend the ABB FIA Formula E CBMM Niobium Rome E-Prix 2018 on April 14, 2018 in Rome, .  (Photo by David M. Benett/Dave Benett/Getty Images for Formula E)