I would agree, if the 2013 is your preferred Boss then I would wait and continue your search for the 2013. Changing the ‘12 would add costs now and also affect your resale later on. I just sold my ‘12 yellow blaze Boss, it was a great car.It would be much more cost effective to just buy a 2013. Also the 2013 has more options in general than the 2012... 2013 is a better bang for buck buy at this point in my opinion. I have put a whole lot of thought and time into comparing the 2012 to 2013 a few years ago when I bought my 2013 Boss 302. It was an awesome car and honestly it is the only Mustang I have ever sold that I regretted and have considered buying another as honestly the new GT's just don't compare so the next level up is a GT500 or GT350 and you are talking a decent jump in money between a Boss and either of those.