I am thinking of going from my a4 1.8t avant to a a6 avant. Can anyone explain what the differnce is between the quatro and other models. i have seen on autotrader that a 1.8t quatro is group 14 insurance while a 2.5 diesel is group 13a.
Does the quatro perform better although it is a smaller engine? Also would the 2.5 diesel be more economical.