Good job doing your home work. I'm in ths same boat looking to get out of my 04 Maxima and into a new car. Lease only tho. I test drove the IS-250 AWD like it like the fact of Lexus but they wanted 5k OFP 48 month lease and $570 a month. UM NO! So went to two Infinty dealers the first was 4700 OFP and $630 the second was 2500 OFP and $570 a month for 39 months= I will pick it up on Saturday. 08 G35X premium and sport, Black on Black..