Mercedes-AMG took a team of 17 drivers to the high-speed test track at Nardò, Italy, to test the Concept GT XX concept car. This concept previews the brand’s upcoming AMG.EA battery-electric architecture. The GT XX traveled 25,000 miles in seven days and 3,404 miles in a single, 24-hour stint. Mercedes-AMG’s Concept GT XX spent a week at the Nardò, Italy, high-speed test track and racked up almost 25,000 miles.