I am looking for a used car and – even though electric vehicles seem to be falling out of favor – I’m considering a used EV.

Dear Tom and Ray: Say I have an electric car (one that runs on nothing but electricity) that can be charged by plugging into any outlet. But for cross-country trips or long trips outside my car’s ...

If you're looking to get power and fuel economy gains out of your car, chances are you've probably seen one of the many weird devices for sale online, including the HHO generator. But do HHO ...