Hi everyone, i am in SD right now and i am recently consider buy a 2012 mustang GT. There is two, one is has 19" wheel, RR sensing/security pkg and comfort pkg it costs 2k more, the other one just premium. which one it worth? is the 19" good deal? and the dealer is very tricky also give me the price after the rebates, how can i bargain with them? thank you!