In 2012 the engineers working on Google’s self-driving car realized they had a problem. Early testers had agreed to always watch the road in case of emergencies, but many didn’t—and it put them at ...

If understated luxury is your thing, then Audi’s biggest sedan is worth a look. Subdued on the outside and exquisitely upscale inside the cabin, the A8 and S8 are among the best options for those who ...