Brandon,
Yes, it should be possible to integrate the mileage database better with the member login. I've been looking into it for a very long time, but haven't yet been successful. Once I get some of the more major things out of the way, I'll figure out how to do that.
If you override the distance, but it calculates mileage based on your tanks, is that not misleading? The mileage it calculates will not be over the span of all those miles. I am, however, looking to allow members to create a "starting point" of mpg/distance and then let the tanks
add to it.
Finally, there is no current way to increase the forum width besides using the
archive. The reason being, I make so many template changes that if I were to create a second theme that's wider, I'll end up having to make the changes to both themes. Things do seem to be settling down now, though, and if there aren't really more changes to be made, perhaps I'll create that option.