The 2026 Ford Mustang GT with a manual gearbox returns the same official fuel economy estimate as the 2009 model, despite a substantial increase in engine output. The stagnation highlights how efficiency gains in large petrol V8s have been offset by weight, emissions tuning and performance priorities.
Seventeen years, extra horsepower, identical thirst. It ends with hundred-quid fill-ups and V8s sold as ornaments while the planet keeps the receipt.