RBM of Alpharetta Share: Automotive RBM of Alpharetta Visit Website Request Info 345 McFarland Pkwy Alpharetta, Ga 30004 678-637-2333 About Map About RBM of Alpharetta is the latest Mercedes-Benz dealer outside of Atlanta. We sell Mercedes-Benz, smart Cars, and Sprinter Vans. We also service and order parts for all vehicles listed. What's Nearby? Distance: 5 10 15 20 25 50 mi.