The Volkswagen Jetta GLI is a sporty variant of the Volkswagen Jetta, a popular and iconic 4-door sedan. The GLI model was first introduced in 1984 and has been in production ever since, with several redesigns and updates along the way. The GLI model features a sport-tuned suspension, larger brakes, a more powerful engine, and other performance enhancements that give it a distinctly sporty and aggressive feel.