Others
Those Colored Dots on New Tires Reveal the Imperfections Engineers Already Measured

New tires arrive covered in information. Numbers identify their size, load capacity, speed rating and date of manufacture. Then, among all that serious molded lettering, someone appears to have atta

AutoExpert
Others
Sedans Survive Rain Without Rear Wipers. Their Shape Explains Everything

Follow an SUV down a wet highway and its rear end soon develops a familiar gray coating. The bumper gets dirty. The license plate gets dirty. The rear window looks as though someone misted it with mud

AutoExpert
Others
One Foggy Stripe Across Your Rear Window Can Reveal a Tiny Electrical Break

On a cold morning, the rear window begins clearing as expected. Most of the condensation disappears, but one neat horizontal stripe refuses to move. That stripe is useful evidence. The window has p

AutoExpert
Tips & Tricks
Your Car Looks Clean but Feels Like Sandpaper. The Dirt Has Bonded to the Paint

The car has been washed, rinsed, and dried. From a few steps away, the paint looks spotless. Run a hand across the hood, however, and the surface tells a different story. Instead of feeling slick, it

AutoExpert
Others
Your Car Has Hidden Vents Behind the Bumper, and Even the Doors Depend on Them

Close a car door with every window shut and the air inside has to go somewhere. The door pushes a substantial volume of air into an already sealed cabin. Without an escape route, pressure builds fo

AutoExpert
Car Show
This 2,100-LB American Supercar Has 700 HP and Almost Nothing to Hide Behind

Supercars keep getting more powerful, more digital, and more complicated. Then along comes Peregryn Automotive with a very different idea. What if all you really needed was a lightweight chassis, a

AutoExpert
Others
That Little Shark Fin on Your Roof May Be Running Half the Car’s Digital Life

The old-fashioned car antenna made no attempt to hide what it was. It was a long metal whip sticking proudly out of a fender, ready to catch radio stations, snag a car-wash brush or disappear overnigh

AutoExpert
Others
Your Eyes Are Not Broken: Here Is Why Moving Car Wheels Suddenly Spin Backward

A car accelerates away on screen, clearly traveling forward, while its wheels begin doing something ridiculous. First, the spokes slow down. Then they appear to stop. A moment later, they are rotating

AutoExpert
Others
Your Car’s Outside-Temperature Display May Be Wrong for a Surprisingly Clever Reason

A car left in the afternoon sun does not need long to turn into a small greenhouse. The steering wheel becomes unpleasant to touch, the seats feel freshly ironed and the dashboard claims it is 104 deg

AutoExpert
Others
Your Window Reaches the Top, Then Drops Again. It May Be Protecting Fingers That Are Not There

The window glides upward, touches the top of the frame and immediately retreats several inches. Try it again and the same thing happens. Up, nearly closed, then back down. It has the comic timing of a

AutoExpert
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