These are the 5 leaders in the self-driving-car race (GOOG, GOOGL, GM, F)

Tech companies and auto companies are all racing to be the first to roll out self-driving cars onto the road.

The stakes are high for everyone involved. The self-driving revolution and the prevalence of ride-hailing services such as Uber and Lyft threatens to reduce individual car ownership, which would eat into a sizable piece of automakers' core business.

Meanwhile, tech companies are jockeying for a piece of the self-driving-car market, which Apple CEO Tim Cook dubbed "the mother...