Sienna Miller was a ray of summer sunshine at the BMW i3 launch party in London in a stunning summer frock. Looking fabulous in florals, Sienna teamed her 1950s-style Dolce & Gabbana dress with statement Charlotte Olympia sandals, tousled waves and a sunkissed glow. We've picked matching buys from our favourite high street and designer stores to recreate her look, and added a cute clutch too.