As we saw with previous spy shots, the overall visual effect of the S4 is a subtle change from the base car. (automobilemag.com)
The back features small uprights for a large rear wing (something that was captured in previous spy shots). (cheersandgears.com)
Based on previous spy shots of the 2015 Mercedes - Benz CLS - Class, the new lighting system will likely appear alongside a revised front fascia. (automobilemag.com)