I'd go for the 06. model year from the differences your discribing. like age, 06 or 08 is just a number. the 06 sounds much more perfect & healthy, so in a sense it's "younger" in it's overall lifespan that the 08, regardless of the year it was born. what would you rather have, a car that was taken new & beat hard & abused & then handed to you a year later, or a car that was used much less & cared for to protect her from wear, but held & protected for 2 years longer & then handed to you? if you look at from new to junk in percentage from 0-100%, the 06 I'm sure has less percentage wear & is that much further from the 100% junk point than the same 08 your looking at. of course this is just my opinion & point of view, so take it for what it's worth.