Garmin Nuvi 3597LMTHD
The Nuvi 3597LMTHD continues to refine Garmin's brand of navigation with premium design and one of the best interfaces in the business.
The TextBuster system makes good on its promise to bust text-messaging and apps, but paying hardware prices for what's basically a software solution is a hard pill to swallow.
The Sony MEX-GS600BT's App Remote function is not very useful without a dashboard mount for your phone, but everything else about this full-featured car stereo makes it easily recommendable.
Automatic Labs Automatic
The Automatic driving assistant helps drivers who know nothing about cars to monitor and boost their fuel efficiency with plug-and-play ease and a simple interface that even laymen can understand.
Parrot Asteroid Smart
The Parrot Asteroid Smart is a smartly designed and flexible multimedia receiver that hangs its hat on an app market that, for now, doesn't offer much choice.
Pioneer DEH-X9500BHS CD receiver
The Pioneer DEH-X9500BHS packs in a remarkably wide range of audio sources for a single-DIN receiver, including some rudimentary app integration.
The Alpine CDE-141 won't blow you away with bells and whistles, but this entry-level car stereo gets the basics right at a competitive price.
CarMD Vehicle Health System
The CarMD Vehicle Health System turns up very limited data compared with the cost of the device, and it offers few real features.
Pioneer AppRadio 2 ( SPH-DA100)
For iPhone 4 and 4S lovers, the Pioneer AppRadio 2 is possibly the best aftermarket receiver that money can buy. For Android users, the choice isn't so obvious.
Escort SmartRadar ( iPhone Version)
It's pricey, but the stealthy Escort SmartRadar detector and the Escort Live app proved to be more accurate than the competition and triggered fewer false alarms.