I did test out the V6 Altima, and it (like the V6 Accord) also seemed lackluster. I think I'm a bit spoiled by my rather pedestrian Sentra, because I understand the gear ratio is tweaked so it's pretty good from a standing start (and I do have the upgraded engine). The Altima also has a truly laughable trunk. Seriously, I'm going to a 2-door because I don't care about passengers 3 or 4. Why are you sacrificing my trunkspace for these losers? Otherwise, the Altima was smooth, comfortable, familiar... dull. But still my favorite of the cars I've tried so far.
I tried the V6 Hyundai Genesis coupe today. Definitely the most fun to ride (apart from the ill-fitting Miata). Slightly too profligate with gas for my taste, slightly too expensive for my pocketbook, but I think I will overlook these defects.
I'm resisting the urge to buy it and drive it for the almost first time in Aaron's road rally, for that would be hubris, and the gods would surely punish it.