Yes, it measures 4495 mm (176.97 in.) in length, 1816 mm (71.5 in.) in width, and 1425 mm (56.1 in.) in height, which makes it 40 mm (1.6 in.) longer, 20 mm (0.8 in.) wider, and 10 mm (0.4 in.) taller than its predecessor.
Thanks to the larger size, interior of the 2021 model year variants is more spacious, offering more headroom and elbow room.
The 2021 Audi A3 Sedan comes with either a 6-speed manual transmission or a quick-shifting 7-speed S tronic.
Yes, a 10.25-inch instrument cluster is featured even in the basic 2021 Audi A3 Sedan trim vehicles.