Mercedes-AMG is building two standalone electric performance vehicles, an SUV and a four-door coupe.The SUV prototype has a four-door coupe-like design and will be similar in size to the current GLS model.The powertrain details are scarce, but the SUV is expected to have over 1,000 horsepower.Both the SUV and the four-door coupe are expected to be unveiled in early 2025.