This 2005 Mercedes-Benz G500 cabriolet was imported to the US by Wallace Labs of Houston, Texas, and now has 49k miles following the current owner's purchase in 2023. Finished in Obsidian Black Metallic over Black Nappa leather upholstery, the truck is powered by a 5.0-liter V8 linked with a five-speed automatic transmission, a dual-range…