Discover the 2021 Audi A3 Sportback 30 g-tron: Explore its features, view an extensive gallery with 13 photos. It's powered by a 1.5-liter TFSI engine, delivering an impressive (131PS) 128 horsepower. With a top speed of 131 mph (211 km/h), it promises an exhilarating ride.It accelerates from 0 to 100km/h in just 9.7 seconds seconds.