If you have ever noticed small vents on either side of your car's front bumper and wondered what they're for, the answer is a ...

When Mike Paradis at Cars, Trucks & Concepts told us that ... ran a nut on the bolt to help position it against the underside of the bumper. Adjust the height of the nut until the head of the ...

The design shows a pickup truck's bumper "with a flat underside that can act as a diffuser," and this bumper step can be electronically deployed using a simple actuator-and-damper combination.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. If you’ve ever driven a bumper car at an amusement park, you’ve ...