Crown Prince Mohammed bin Salman visited Ad-Diriyah to review the preparation for the Saudi E-Prix in Riyadh.  He was accompanied by Prince Abdul Aziz bin Turki Al-Faisal, vice president of the General Authority for Sport, Princess Haifa bint Mohammed bin Saud, chairperson of the Saudi Fencing Federation for Women’s Affairs, Jerry Inzerillo, CEO of the Ad-Diriyah Gate Development Authority and other senior officials.  The Formula E event will begin Thursday in the historic town of Ad-Diriyah. It is expected to attract around 40,000 people including visitors from the Americas and Europe. The E-Prix, held in the UNESCO World Heritage Site outside the capital Riyadh, is the first event of its kind in the Middle East and also boasts a glittering lineup of musical talent including David Guetta, Jason Derulo and Amr Diab. Formula E, officially the ABB FIA Formula E Championship, is a class of auto racing that uses only electric-powered cars. The event provides visitors with an opportunity to watch 22 drivers from around the world battle it out on the track.