DEARBORN, Mich. (WXYZ) — Ford unveiled its fastest street-legal Mustang at the North American International Auto Show earlier this year, but the automaker isn’t done with new Mustangs. Ford unveils Mustang Shelby GT500, Explorer trim models at North American International Auto Show Photo gallery: All-new Ford Mustang Shelby GT500 On Monday, Ford announced a high-performance package for the 2020 Mustang that will deliver 330-horsepower and its an entry-level Mustang lineup with the first-ever “powered by Ford Performance.” The sports car will have a 2.3-liter EcoBoost engine with 330 horsepower and 350 lb.-foot. of torque. According to the company, it started as a passion project with swapping a Ford Focus RS engine and it became a product in less than 10 months. “The Ford Performance Focus RS 2.3-liter engine is a high-revving marvel, and anyone who’s driven this EcoBoost engine instantly loves how quickly it responds and delivers power,” said Carl Widmann, Mustang chief engineer. “When our team got the chance to try this specially built engine in a Mustang and drove it – we immediately agreed – ‘We’ve got to do this.’” After the experiment of swapping the engine, the Mustang team accelerated the project and completed the internal design to approval process quickly. The Mustang EcoBoost will be available as a coupe or convertible this fall.