The FIA and Formula E will allow manufacturers to introduce hardware upgrades to their Gen4 cars through a new token-based system, replacing the current mid-cycle Evo update format.<br>The process is similar in principle to the system used in the Hypercar class of the FIA World Endurance Championship, where manufacturers are allocated five joker upgrades over a five-year homologation cycle ...<a class='more' href='https://www.autosport.com/formula-e/news/formula-e-to-adopt-wec-style-joker-upgrade-system-for-gen4/10799410/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-ALL&utm_term=News&utm_content=uk'>Keep reading</a>