Hybrid or Electric Ownership Cost Comparison Is it cost effective to purchase an alternative fuel car? You'll use less gas, but probably pay more up front. This calculator will give you an idea of what the savings (or cost) might be.
Vehicle Cost Calculator This tool uses basic information about your driving habits to calculate total cost of ownership and emissions for makes and models of most vehicles, including alternative fuel and advanced technology vehicles.
iPhone and iPod calculators
Apple - Web apps - Car Depreciation Calculator This effective calculator will help you decide how much you should pay for a new or used car.
You can also estimate how much your own car is worth and what would be a fair asking price.