at first the fix seems like the better deal, but then i looked at it this way: the total cost of my 2015 TDI S was $27,791 (cash price+TTL+1.9%APR 5 years). My total buyback number is $25,500. This means if i keep driving it and then do the buyback in Septemeber 2018, i just drove the car 40 months for $2,291.. Thats…