Not sure what to do. Just got offer to buy 2013 sport for $6500 off mrsp at 2.5% for 60 months. It's priced at $56000 so my price would be $49000 and change. Was looking for a 2012 and talking to a used car dealer who said he will work through auctions and find one (but he can't see those exclusive to mercedes), and give me a modest mark up. Can anybody pm me what these cars are going for at auction so I can get a feel what to do? Looking for 2012 sport package 1, under 15k miles. Feel like I need to be able to get in the car for $39k for it to make sense not to be new, but I'm not sure if that is a realistic expectation. Thanks, any guidance appreciated. I'm in texas.