All Car electronics

The Bottom Line: The Mio Knight Rider GPS is a portable navigation device like no other, featuring the voice of KITT, but behind all the fun, you'll also find a solid, entry-level in-car GPS.

Specs: 20 channel, Automotive, Navigation instructions

The Bottom Line: The vast array of features offered by the JVC El Kameleon KD-AVX44 creates a car audio experience that rivals all but the best preinstalled receivers.

Specs: 5.1 channel audio line-out, USB, Composite video/audio input, Composite video/audio output, Composite video input, Navigation system input, System components control bus

The Bottom Line: The new Navigon 2100 Max features some nice additions, including a larger screen and advanced lane guidance, but the portable navigation device is still tripped up by sluggish performance.

Specs: Automotive, 5.6 oz

The Bottom Line: While it is a good training tool to help motorists to drive more efficiently, the PLX Kiwi will not miraculously boost your fuel economy.

The Bottom Line: The Garmin Nuvi 500 is a satisfactory multimode GPS, but serious boaters and outdoor enthusiasts should consider dedicated devices.

Specs: Automotive, Navigation instructions, 7.6 oz

The Bottom Line: The Sony Xplod CDX-GT920U offers many options for connecting to your digital music library and supports the most commonly used formats, unless your music library is on your iPod.

Specs: Radio / CD / MP3 player / USB flash player, Radio tuner, CD / MP3 player, Audio line-in, USB, Rear channel output, Front channel output, Subwoofer output, System components control bus

The Bottom Line: The Nokia 500 Auto Navigation improves over its predecessor and offers a decent set of features and performance, but the GPS needs some work in terms of ease of use and interface.

Specs: Automotive, Navigation instructions

The Bottom Line: As we've come to expect from the Nuvi line, the Garmin Nuvi 880 offers an impressive feature list and solid performance, but it's the accurate speech recognition that really pushes the Nuvi 880 over the edge and makes it one of the best GPS we've tested to date.

Specs: Automotive, Navigation instructions, Street name announcement, 6.2 oz

The Bottom Line: For the company's first stab at the GPS market, the Asus R700t is an impressive debut, offering some great navigation features. However, we'd like to see the addition of text-to-speech functionality and smoother performance before completely committing to it.

Specs: Automotive, Navigation instructions, 7.1 oz

The Bottom Line: For the price, the Sony MEX-BT2600 is an impressive all-in-one in-car communication and entertainment device.

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