The split, like with the pair of Volvo crossovers recently tested, comes in the headlight department. The A6 has all-around better headlights, with two of its optional units garnering the top "Good" score, and the base headlights being rated "Marginal," the second lowest score. The Q8's optional headlights only managed to get the second-highest rating of "Acceptable," and the base headlights were rated "Poor" for too much glare for oncoming drivers.
But headlights aside, both cars are extremely safe, each earning "Good" ratings in every crash test. Each car got top marks in forward collision prevention with all standard equipment. On top of that, they each earned "Good" ratings in LATCH child seat anchor accessibility, so if you're a family of some means, these will be great for carting around small children.