By Richa Naidu LONDON (Reuters) – Nestle (NS:)’s KitKat brand has signed a global sponsorship deal with Formula 1 as new Chief Executive Laurent Freixe seeks to change the way the world’s biggest food company markets its core, multi-billion-dollar brands. A senior executive told Reuters exclusively that the Formula 1 deal had been struck to cover the period between late 2025 and 2028, and the aim was to improve KitKat’s