Ola is investing over $500 million to launch a 'self-drive' car service with nearly 10,000 vehicles, including luxury sedans and SUVs, in major cities in the coming weeks. Ola is said to pilot the service in formats such as rental, subscription and corporate leasing. With the new service, Ola will rival Sequoia Capital-backed Zoomcar and Y Combinator-backed Drivezy, among others.