Back to Story: Mercedes-AMG GT to debut new AMG M178 turbocharged V8 – 510 horsepower, 650 Nm 1 / 2 ↑ Click for grid view Mercedes-AMG GT to debut new AMG M178 turbocharged V8 – 510 horsepower, 650 Nm View full resolution ↑ ↓ Share ← Previous Next → Use your ← → keyboard keys to navigate