My car came equipped with 19" Goodyear RS-A2s, and while I can't say they've been bad tires, i'm not blown away by them either. Looking on tirerack i can see they're dirt cheap ($125/tire) so i for that price I'd say they're excellent value for money. The snow traction is pretty awful but considering i'm used to snow tires that's kind of to be expected I guess, and now that i live in SoCal a dedicated set of snows are out of the question for the couple mountain trips per year I'd do. Poor tire rotation habits means my back tires are getting close to end of life, and with a long road trip to Colorado coming up I'm considering either: 1) just replacing the worn rears and riding these out for another 30-40k 2) Upgrading to Michelin Premier A/Ss. ($260/tire) I haven't been able to find any side by side comparisons of efficiency and noise but for double the money I would expect a noticeable difference. Has anyone gone from the Goodyears to the Michelins? I'm particularly interested in how quiet they are.