Audi’ s compact sedan, the A4, is equipped with a turbocharged, 2.0L four-cylinder engine developing 252 horsepower and 273 lb·ft of torque. The S4‘s turbo V6 generates 354 horsepower. While both of these versions are sedans, there’s also a wagon available, the A4 allroad quattro, equipped with the A4’s 2.0L engine. Thanks to its raised suspension, the allroad is just as comfortable in snow as it is in mud. All versions of the A4 feature quattro all-wheel drive.