All Car electronics

The Bottom Line: Fans of Dale Earnhardt Jr. will enjoy hearing the NASCAR star direct their trips, but after the novelty wears off, the Rightway Spotter, Dale Jr. Edition just doesn't stack up to the competition.

Specs: Automotive, Navigation instructions, 8 oz

The Bottom Line: The Alpine CDE-102 is an excellent OEM replacement stereo, but serious audiophiles and system builders should look further up the product lineup.

Specs: Radio / CD / MP3 player / USB flash player, Radio tuner, CD / MP3 player, Audio line-in, USB, Audio line-out

The Bottom Line: An interesting and effective technology demonstration for a collision warning system, the AWS-4000 might make sense for large trucks in fleet operation.

The Bottom Line: The Eclipse AVN726e will cover most users' hands-free calling, navigation, audio, and visual needs in a single installation. It is also an excellent starting point for system builders.

Specs: In-dash, LCD monitor, iPod compatible, ID3 tags support, Bluetooth audio streaming, Rear-facing camera capability, Bluetooth hands-free for cellular phone, 50 Watts x 4, DVD player, LCD display, Radio tuner, Digital player, GPS navigation system, CD, DVD, CD-R, CD-RW, DVD+R, DVD-R, DVD+RW, DVD-RW

The Bottom Line: For serious car geeks with an engineering bent, the Fuel Efficiency Adviser will provide a satisfying array of data, but others will be overwhelmed by the complexity.

The Bottom Line: The Alpine iXA-W404 shows plenty of promise, but we'll wait to see if the touch-screen interface improves with the next generation.

The Bottom Line: The TomTom GO 740 Live puts a tremendous amount of information at your fingertips and makes it easy to access and process it all from the driver's seat.

Specs: Automotive, Navigation instructions, Street name announcement, Voice command recognition, 7.9 oz

The Bottom Line: The TomTom XL 340 S introduces a few advanced features to TomTom's midrange lineup, while staying well below the premium price bracket.

Specs: Automotive, Navigation instructions, Street name announcement, 7 oz

The Bottom Line: The TomTom One 140 S benefits greatly from feature trickle-down, bringing high-end features to an entry-level model without much price bloat.

Specs: Automotive, Navigation instructions, Street name announcement, 6.8 oz

The Bottom Line: The Cobra XRS 9960G offers a feature set that goes far beyond standard radar detectors. Its detection performance works for most people, but it may come up short for faster drivers.