For 1990, the four-door Volkswagen Jetta was available in three versions. The Jetta Carat was equipped with a 1.8-liter inline four-cylinder engine that generated 104 horsepower, while the higher-end Jetta GLI was equipped with a 134-horsepower, 2.0-liter four-cylinder. In addition, a diesel version, called the GL, was available. Its 1.6-liter engine generated 52 horsepower. A five-speed manual transmission was standard across the line, while a three-speed automatic was optional for the Carat and GL.

Standard features for the Carat and the GL diesel version included bucket seats, power brakes, power steering, a tilt steering wheel, and a rear window defroster, while the GLI added a rear spoiler, a power-adjustable driver's seat, power door locks, a sport-tuned suspension, and a trip computer.

The Jetta was alternately described by drivers as flawed, quirky, and reliable, but the car nevertheless gained a loyal following. However, many drivers noted that their cars needed frequent and sometimes expensive repairs.