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The Good A diesel drivetrain gives the 2014 Audi A7 TDI impressive fuel economy for a large car. Connected features include Google local search and Google Earth integrated with navigation. Bang & Olufsen audio delivers detailed and balanced music reproduction.
The Bad The A7 TDI requires additional maintenance in the form of 10,000 mile AdBlue fill-ups. Audi's proprietary audio port requires adapter cables for external devices; a standard USB port would be preferable.
The Bottom Line The 2014 Audi A7 TDI includes some of the best connected tech available today in an automobile, and those inclined to put up with a few diesel drivetrain quirks will be rewarded with significantly higher fuel economy than from the gasoline equivalent.
In heavy traffic on the freeway, I let the 2014 Audi A7 TDI's cruise control handle braking and accelerating, and gave lane-keeping assist a try by letting the car drift over to the left lane line. Cruise control, using its radar to track the car ahead, unerringly handled stop-and-go without my intervention. And before the car crossed the lane line, the camera-based lane assist moved the wheel under my light grip, steering the A7 TDI back into its own lane.
Was I experiencing a glimpse of our autonomous driving future?
Not exactly, as the pull on the steering wheel sent the car on a drift toward the right lane line, from which it also corrected. If I let it have its way, I figured it would drunkenly weave back and forth between the lines, then get completely thrown off by the first serious curve or faded line paint. The A7 TDI's radar and cameras made it dimly aware of its surroundings, but true autonomy requires more sophisticated sensors.
Despite not exactly being the future of self-driving, the A7 has been a high-tech showcase for Audi since its launch in 2010, not to mention having an excellent body design that became much copied. For 2014, the A7 adds some driver assistance features, but its connected infotainment system is largely the same as before.
Source: CNET
