I am planning on purchasing a 2007 used Infiniti G35 and I am wondering what the best, or rather, lowest possible price I can get one for. Some models I've been looking at have a range of $28K~$29K (before taxes) with low mileage (under 10~15,000) and some premium options (sunroof, sports package, I guess everything except for navigation). Considering the new G37 model has been out for a while, and the US is going through a slump in car sales, I was wondering what price I can talk the dealership down to. I am also putting down a down payment of $6K. If you are in this industry, Id love some feedback. Thanks in advance.