ÖBB Postbus to test Otokar’s Autonomous e-Centro at SAE Level 4 in Austria August 17, 2026 | Europe News, News Austrian public transport operator ÖBB Postbus has selected Otokar’s Autonomous e-Centro for a pilot project involving a fully electric SAE Level 4 autonomous bus in Austria. The Autonomous e-Centro w... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password