February 08, 2021 The Public Investment Fund Joins Diriyah E - Prix 2021. PIF’s continued partnership with Diriyah E-Prix confirms the prominence of the event in Saudi Arabia’s evolving sporting, social and business network. RIYADH — The Public Investment Fund (PIF) will have a significant presence as Local Partner to the 2021 Diriyah E-Prix on Feb. 26 & 27, which will feature two races for the revolutionary all-electric motorsport series to commence its 2021 season. CBX, the Riyadh-based promoter of the Diriyah E-Prix and for the ABB FIA Formula E World Championship in the Middle East, announced Monday that as a Local Partner, PIF branding will feature prominently on the track and across Diriyah E-Prix race communications.