Hello and welcome, I’m Brandon. I will do my best to help you with your question.
I have to tell you both vehicles the A6 and 5 series are a blast to drive.
You should be seeing the body change for the 5 series sometime in late 2014 or early 2015.
The BMW (F10) body style was introduced since 2010.
The Audi A6 started their new body style at 2011.
I'm more leaning toward the BMW 5 series. Because it has more engine options. It offers gas or diesel striaght 6. If power is prority the big V8 with turbo is available.
Internal news is that BWD are designing the body style on the 5 series.
It is all about your preference both car is excellent.
I will be checking my email later tonight. Please let me know if you need more further help. Have a good evening.
I'm open for conversation, please let me know what is your take on this.
The minor face lift included updated headlights with option of full LED units. The front pair of kidney grilles will be slightly changed. Available engines will have minor changed most likely the engineer will tweak the engine control programming. The IDrive information system will be upgraded with the latest applications.