The 2021 Audi A4 and Audi A5 lineup see the most significant changes after being refreshed last year. New for 2021, the 2.0-liter four-cylinder engine 45 TSFI models now produce 13 additional horsepower for a total of 261 hp with a new 12-volt mild-hybrid system. The base 40 TFSI models also get a 13-hp bump, bringing the total to 201 hp, and now benefits from standard Quattro all-wheel-drive. A new Audi smartphone interface comes standard with wireless Apple CarPlay, lane departure warning, and an integrated toll module (ITM).
Audi also made some additions to the Convenience package, Premium Plus trim, Prestige trim, and Black optic package. The Convenience package gets a heated steering wheel and parking system plus; Premium Plus gets adaptive cruise control with active lane assist, a top-view camera system, and a hands-on detection steering wheel; and the Prestige trim gets heated rear seats.