Estimated time drivers save by using real-time GPS traffic updates
Drivers that use GPS systems with real-time traffic info spend 18% less time behind the wheel than those who do not.
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199.99 for the 520
299.99 for the 720
i would imagine 499.99 for the 820
$399 for the 820.
$399 for the 820.
The 520 has been available since the end of March. The 720 since mid April, and the 820 should be available in the next week or two.