A clear bra can help protect vulnerable areas of your car from rock chips and other damage, but it also presents a different kind of surface to maintain. If you regularly polish your car's paintwork, this video from Ammo NYC shows how to polish a clear bra, too. The car used in the video is…

A key part of getting a car's power to the ground effectively is the differential, which uses gearing to regulate the split of power between wheels on an axle. This video shows exactly how it works. The video is from aftermarket company Banks Power and serves as an advertisement for the company's differential covers, but…

Some automakers are using brake-by-wire systems in their latest vehicles. Jason Fenske at Engineering Explained has the details on how these systems work. Brake-by-wire systems insert electronics into the mechanism. In a car with brake-by-wire, pressing the brake pedal sends a signal to a brake control unit that then actuates the brakes. Computers...

A persistent debate around synthetic motor oil is whether it can be used in old cars. In this Engineering Explained video, Jason Fenske clears things up. The video is part of a series sponsored by Mobil1, which gave Fenske access to its engineers for questions about motor oil. The short answer is, yes, you can…