We compared 3 self-driving systems in cars - and the winner is clear

• We've tried Tesla Autopilot, Cadillac Super Cruise, and Mercedes Drive Pilot.
• Each has its own pros and cons.
• Super Cruise is, in our view, worth the extra cost.

These are early days for self-driving cars. True, we've seen some efforts at near full-autonomy in some experimental cases. Waymo has been at it for years, Uber rolled out its own system in Pittsburgh in 2016, and more recently General Motors' Cruise division showcased its technology for the media.

The emphasis here is experimental as these systems don't play much of a role in everyday consumers' lives.

But over the past year, we have sampled some systems that do. Three that stood out are from Tesla, Cadillac, and Mercedes.

Here's the rundown: