The front grille of the Audi A3 now is a honeycomb design retaining the familiar six-sided "single-frame," flanked by thin headlamp lenses with notches below the outer edges. An integrated trunk lid spoiler and Audi-design taillamps contribute to a more "streamlined" body. 

The new A3 has a controllable cool-air inlet behind the grille, with electronically activated louvers, a panel-sealed underbody, and redesigned side-view mirrors.

Driver and passenger on the Audi A3 are separated by a "completely different layout," according to interior design chief Stefan Vollmer. The front passenger side vent is thin and horizontal, while the driver's part of the dash is more cockpit-like, with a digital 10.25-inch digital instrument cluster. 

The 2021 A3 sedan retains last year's 103.8-inch wheelbase, but its overall length is 1.6-inches longer: about 177.2 inches, while width is up 0.8-inch, to 72 inches. Headroom is also slightly higher. 

New aggressive details amp up the A3s design for 2021 The sharp, signature Singleframe® grille is a stunner while the available full LED headlights are dressed to impress and create greater visibility at night.