Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Yarilet Perez is an experienced multimedia ...

If you're a control freak, late-model electronic transmissions are just what you need to modernize your classic car, and if you decide to go that route, a transmission control module is a must-have.

Level 0: No automation. The driver is in complete control of every aspect of driving. Level 1: Has one or more automated functions that operate independently of one another. Driver is still in full ...