I do quite a bit of driving with my new job and need to keep track for taxes.
This is what I have found recently:
Multiple drivers and vehicles may be tracked, and an advanced search option helps you to quickly filter data. Reports are emailed as .csv files for easy import into Excel or Numbers.
Ability to turn off features that you aren't interested in
Ability to attach a picture of your receipts
Road Trip Lite • MPG and Mileage Tracking
The most simplest app for your need is Vehical (Free) -
But this app has been last updated in 2009.
Other option is -
MileBug - Mileage Log & Expense Tracker ($2.99) -