GM SuperCruise right now, and Ford is claiming that their "Blue Cruise" product will be able to do it soon. There may be others, but those are the two that I'm familiar with.
I've also been observing a general trend of reviewers rating the performance of new vehicles based in part on how long it can go without nagging the user to hold the wheel. sigh
I've also been observing a general trend of reviewers rating the performance of new vehicles based in part on how long it can go without nagging the user to hold the wheel. sigh