Mercedes-Benz Accessories GmbH has announced that a new portable navigation system - the StreetPilot III - will be available for both models (as well as some prior A-, B- and C-Class). Produced in partnership with Garmin, the nav system features a 4.3 inch high-definition, non-reflecting display and a depth of just two centimeters, making it one of the slimmest products on the market...
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