How do you determine if a car is too old to buy? Here's what a study says about vehicle longevity and how to calculate a car's lifespan on average.

Used cars can depreciate quickly. Find out when car, truck, and SUV owners can get the most value for their vehicles.

Tips for Income Tax Mileage Deductions. When you use a vehicle for your business, the Internal Revenue Service allows you to write off a certain amount of money per mile as an expense -- 55.5 ...

How to Pick a Used Car The age-old adage is that the 100,000-mile mark was indicative of a car past its prime. But despite their complexities, modern vehicles are even more reliable, thanks to a ...

The IRS recommends keeping mileage and vehicle-related documentation for at least three years in case of an audit. This includes your logbook, receipts, and Form 2106.

Keep a log book in your car and note the miles driven each day. Logs created after-the-fact with estimated miles driven could be disallowed during an audit. Make thorough entries ...