The Audi S1 Sportback is Audi's answer to small hot hatches like the Ford Fiesta ST, Renault Clio Renaultsport and Vauxhall Corsa VXR. But unlike those models, the S1 Sportback adds extra versatility with a pair of rear doors that make it easier to live with if you regularly carry passengers. It also has the all-important quattro four-wheel drive system which means it remains a useable high-performance car in most weather conditions 外媒试驾奥迪S1