General Motors’ hands-free driving tech will soon work on many more North American roadways.

Why it matters: No one can buy a self-driving car yet — not even from Tesla, which falsely markets its partially automated, assisted-driving beta feature as “full self-driving.”

But as cars come equipped with ever more capable assisted-driving systems, consumers will have the chance to try out — and potentially learn to trust — vehicle automation.

The latest: Starting later this year, GM’s hands-free driving system, Super Cruise, will be available on 400,000 miles of roads in the U.S. and Canada, the company says. That’s double its current operating area, and more than triple the coverage for Ford’s similar BlueCruise feature.