I just got the new Altima SE-R back in March. This replaced a 2004 Altima SE 3.5. Anyone else have one can tell me how they like it? I love this one, drives a little differently than my 04 SE did. Front tires feel like they are in grooves sometimes, is that normal? I also am not getting the mileage the other one got, but I like the looks a lot better, the ride is great, and I love the Sirius satellite radio. Question: Has anyone put a high performance chip in one of these and did it make a differeence? Thanks!