Tuesday is one of those days when you can sense that Detroit's automakers realize their future is increasingly being overshadowed by what happens in Silicon Valley.
During the day, Google will take journalists on rides in its autonomous drive prototypes and provide updates about its research into driverless cars. Later, Tesla will deliver the first Model X, its long-anticipated electric SUV.
"People not involved in the auto industry look at Tesla, the darling of media and Wall Street, and now Apple and Google, which are moving into the auto industry, and they see Silicon Valley as the future of the auto industry. And to a limited extent, that is true," said Michelle Krebs with AutoTrader.com.