Sky Drive by Cartivator — the start-up had announced its goal of a flight to ignite the 2020 Summer Olympics torch with its eVTOL,[8] postponed to due to the COVID-19 pandemic.[9] Toyota is a backer.[8] Kitty Hawk Flyer by Kitty Hawk Corporation — Larry Page's Zee.Aero and the Kitty Hawk Corporation (backed by Page) are developing flying cars.[10][11] In April 2017, Kitty Hawk unveiled its "Flyer" VTOL craft, which flies only over water.[12] Part of Kitty Hawk was split off into Cora by Wisk, a joint venture between Wisk Aero LLC and Boeing, in 2019.[13][8] Volocopter 2X by E-Volo, now Volocopter[8] — in August 2019, the Volocopter 2X was successfully tested at Helsinki airport for integrate with air traffic management services for unpiloted aerial craft AirMap, Altitude Angel and Unifly, a key element for commercial flight certification.[14] A³ Vahana by Airbus[8] — the Airbus eVTOL prototype made its first flight on May 3, 2019 in Donauwörth, Germany[15] EHang 216 by EHang[8] — the EHang 216 carried passengers in Changchun, China during a demonstration flight at the 2019 China-Northeast Asia Expo in late August 2019[16] Uber — the international ride-sharing company is working with Karem Aircraft[17] to develop the electric eCRM-003 eVTOL, with first tests expected by 2020, and very limited UberAir service trials by 2023 (Los Angeles, Dallas-Fort Worth, and Melbourne), with 50 vehicles serving five skyports per city.[18][19]