Gone are when you couldn't start your car's engine without a physical key. Modern vehicles today come with key fobs that are more useful than just starting your car and locking and unlocking its doors ...

It's been a year since I replaced the key fob on my 2004 Malibu, saving more than $100 buying online instead of from a dealership. I paid about $25 for the fob and $50 to have a Chevy dealer program ...