Mary Barra

GM’s first cars from its new electric vehicle platform hit the streets in December as part of the automaker’s $35 billion commitment to build a 30-vehicle electric-powered fleet by 2025. On Barra’s watch, GM has also doubled down on autonomous technology. In March, GM bought out SoftBank’s $2.1 billion stake in self-driving car company Cruise and invested another $1.4 billion to deploy a driverless robo-taxi service in San Francisco and eventually other cities.