This 2009 Mercedes-Benz SL550 is finished in gray over black and Anthracite leather, and it is powered by a 5.5-liter V8 paired with a seven-speed automatic transmission. Equipment includes a power-retractable glass roof, bi-xenon headlights with Active Curvelight, 19″ AMG wheels, heated and cooled multi-contour seats, Airscarf, dual-zone automatic climate control, Parktronic, Keyless Go, auto-dimming mirrors, and a Harman Kardon audio system. The car was first delivered to Euro Motorcars of Germantown, Maryland, and it subsequently remained registered in Virginia…