A6 purchasing advise
 

Hello all,
I am looking at purchasing an A6 3.0, either 2015 or 2016. I see the 2016 3.0 had a slight increase in HP over the 2015. Is the difference significant, or should I stick with the 2015, as it is more affordable. Also, is the updated MMI worth the extra cost in the 2016? I'm looking at the Premium Plus vs the Prestige. Is the Prestige worth the extra money? Thank you very much for your replies.
Mike