The 2013 Audi A4 is a part of the brand's fourth-generation line of luxury compact sedans. It features a turbocharged 2.0-liter four-cylinder engine that offers 220 horsepower. The sedan is available with a standard front-wheel-drive system, while the brand's iconic Quattro all-wheel-drive system is optional. It comes with either a Continuously Variable Transmission in the FWD model or an eight-speed automatic in the Quattro model. The A4 comes in three trims, namely Premium, Premium Plus, and Prestige. Standard safety features on the A4 include antilock brakes, stability control, and multiple airbags. The infotainment system features a 6.5-inch display and Audi's MMI interface, Bluetooth, and a 10-speaker sound system. The 2013 model saw minor changes, including an updated exterior styling and a boost in its engine's horsepower.