Amazon.com 6-Hour GPS Blowout Sale: Up to 58% off, deals from $90 + free shipping

Amazon.com takes up to 58% off a selection of GPS navigation systems as part of its 6-Hour GPS Blowout Sale. Prices start at $90, but of particular note are the 10 "Lightning Deals", some of which are below. Almost every item in the list below is substantially lower than any price we've previously listed. With free shipping on orders over $25, most other models are also at lowest-we-could-find prices. Sale ends today at 3 pm ET. Notables:

• Magellan RoadMate 1412 4.3" Portable GPS for $99.99
• Magellan Maestro 4700 4.7" Bluetooth Portable GPS for $144.99
• Garmin nuvi 780 4.3" Bluetooth Portable GPS for $164.99
• Garmin nuvi 5000 5.2" Portable GPS for $179.99
• TomTom XL 340S Live 4.3" Internet Portable GPS for $179.99
• Garmin nuvi 885T 4.3" Bluetooth Portable GPS Navigator for $259.99
• shop the entire Amazon.com 6-Hour GPS Blowout Sale