Production quality The objective is quality control at the workstation, strict compliance from suppliers and at the plant, and excellence in quality processes, as part of the PSA Excellent Plant initiative: p p 50 vehicles per model and per day are test-driven by two professional operators on specially-designed tracks (road surfaces, turns, obstacles, etc.); and on the road outside the plant; p a monitoring and audit plan drawn up by the Quality Assurance Department ensures the plant employees in charge of the daily quality checks meet the requirements of the industry benchmarks.