2014 Touareg TDI Lux with extra set of like new 18" wheels from a 2012. Local tire dealer quoted $1150 for the 255/65R18 Hakkapeliuitta R2SUV tires available in stock and Nokian Hakkapeliitta R2 255x55x18 for order. Any advice on advantage of buying either tire size? Discount tire in the area quoted $1152 mounted and road forced balanced. Appreciate input, Winter has arrived and need to make a decision.