After one year managing the automobile costs calculator, we just had 54 users filling in for USA!
It's a very low ratio, considering USA is the country where people have more cars and good access to Internet.
Besides, the calculator has a good page rank.
Automobile costs calculator
We are making statistical analysis, and the form is totally anonymous; so if you could fill in, we'd be really appreciated
Tell other people who have cars to fill in as well. We always share the results.
All the code is freeware, in case you want to download it or implement it elsewhere
Thank you so much