The track-focused Ford Mustang Mach 1 arrived for the 2021 model year as a replacement for the Mustang Bullitt, reviving the Mach 1 nameplate for the first time in nearly 20 years. But not every Mustang Mach 1 is equal. In the US, the Mach 1's naturally-aspirated 5.0-liter V8 generates 480 horsepower and 420 lb-ft of torque, but the V8 unit was detuned to 453 hp and 390 lb-ft in Europe thanks to stricter emission regulations.

Australia's Mustang Mach 1 is also missing several key features. Early promotional materials advertised the Mach 1 Australia with radar cruise control, rear parking sensors, and fog lights as standard equipment, but these features were removed to increase the car's track performance.

As standard, the US Mach 1 comes with a Torsen limited-slip differential to improve the handling, but the Australian version features the same mechanical limited-slip differential as the Mustang GT and Bullitt. Following complaints from disgruntled buyers, CarAdvice reports that Ford Australia is offering three years free servicing and an exclusive track day experience to make up for the missing equipment.

"We recently discovered some content and feature corrections on the Mustang Mach 1 for the Australian market, and are disappointed we didn't catch this before the first run of brochures and website was published. We are especially disappointed that our loyal Ford customers and Mach 1 owners feel let down."

Ford Australia added that "uniquely engineered parts, which are designed to improve downforce and cooling on the Mach 1, unfortunately mean that the vehicle does not feature (radar cruise control) or audible rear sensors while parking, though a reversing camera remains standard."

Customers will be invited to track day at their nearest racing circuit. Ford will also pay for the first three services, which are valued at a total of $1,380 AUD ($1,082.49 USD). CarAdvice estimates Ford's goodwill gesture will cost over $1 million AUD ($783,070). Customers entitled to the free servicing and track day will be contacted by Ford Australia, but it's not clear if they will be offered to customers who bought a 2021 Mustang Mach 1 after the promotional material was corrected.