The 2004 Audi A4 represents the second-generation of the A4 (B6) and is appreciated for its build quality and sporty nature. Buyers could choose between sedan, wagon (Avant), or two-door convertible body styles. This luxury compact car comes with FWD as standard, although the Quattro AWD system is also available. There are several engine options from a 1.8-liter turbocharged four-cylinder engine producing 170 horsepower to a 3.2-liter V6 producing 220 hp. Transmissions options include a five-speed automatic, a six-speed manual, or Audi’s unique multitronic continuously variable transmission (CVT). Interior amenities include leather seats, a sunroof, and automatic climate control, while the standard infotainment system doesn't offer modern smartphone integration. In terms of safety, the A4 is equipped with front-seat side airbags, full-length curtain-type airbags, and anti-lock brakes.