The new AC Schnitzer ACS7 will have its worldwide debut at the Shanghai Auto Show next week. The German tuner is doing well in China, it has special dealers in Beijing, Shanghai and Guangzhou that only sell  AC Schnitzer-tuned BMW’s. The ACS7 is based on the 740i. It got loads of new spoilers and skirts but most importantly the power went up from 326 to 360hp. One brand new ACS7 was seen in Shanghai, yet without plates. More pics: