After some talking with Darin, he convinced me that
going to a thinner tire had some very good benefits. So, I removed the 155 tires off my Tercel, and put them onto my Paseo which previously had 185 tires on it.
Here is a top shot of the Paseo and Tercel tire next to each other. They are the same diameter.
Fortunately (and unfortunately), while removing the tire I also found this mess. Chalk up another thing to fix on the Paseo.
I also picked up the most aerodynamic wheel covers I could find. I'll probably tape them up as some of the others here have done. They already have a nice curvature to them which I hear is beneficial vs a flat surface.