Fully functional cutaway model of a 16-valve, 4-cylinder turbocharged engine with multipoint electronic injection and front-drive 5-speed gearbox with reverse. Includes integrated differential for complete drivetrain training. Operates electrically at 220V (110V US) at reduced speed for safe observation. Features DOHC system, balancing shafts, turbocharger, and water cooling. Cutaway design exposes internal components for detailed study of engine and transmission operation.