A sporty S8 model and plug-in hybrid both return for 2021. Whereas some vehicles aim ... is a mild-hybrid turbocharged 3.0-liter V-6 producing 335 hp and 369 lb-ft of torque.

Following a thorough refresh for 2020, the 2021 A4 receives a 13-hp increase and a 12V mild hybrid electrical system. Additionally, FWD is no longer offered; all A4 trims feature Audi's Quattro ...