help with my car log
 

hi. i'm more of a computer guy, and i've made a car log for my wife and myself. but there are some flaws with it.

here is the link. if you want to try it out - user:guest pass:guest1

here is a pic of the stats page:
http://att.macrumors.com/attachment....5&d=1262302682

the problem is that this doesn't compare these current stats to anytime in the past, so you don't know if it's getting better or worse.

also, i wanted to see if anyone thinks i'm leaving off any info. like is avg mph worth anything? or anything else i might be leaving out? i have a scangauge (but my wife doesn't).

thanks in advance