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Your Old Car Battery Doesn't Get Thrown Away At O'Reilly

When your car battery finally gives up, you probably don't think much about what happens after you hand it over at O'Reilly Auto Parts. You get your core charge back, or possibly a gift card, and the dead battery disappears…

Your Car's Tiny Spare Tire Has A Very Specific Job

A flat tire is never convenient, but some cars make the situation a little less dramatic by carrying a tiny spare tire instead of another full-size wheel. It might look almost comically small compared with the tires on the car,…

Rear-Hinged Doors Used To Be More Common. So Why Did They Disappear?

If you've ever seen an old Lincoln Continental or Cadillac Eldorado Brougham, a Rolls-Royce, or a Mazda RX-8, you've probably noticed that the rear doors open in the "wrong" direction. Instead of hinging at the front, the rear doors are hinged…

Why Do Turbo Cars Make That Famous Whoosh? Here's What's Happening

Turbocharged engines produce a few sounds that are almost impossible to miss. There's the whistle as the revs climb, the whoosh when you lift off the throttle, and sometimes that distinctive flutter coming from the intake. To anyone unfamiliar with…

How Your Car Knows The Speed Limit Without Even Seeing A Sign

Modern cars can tell you the speed limit without you ever touching a map. Some can even warn you when you're driving too fast or automatically adjust the cruise-control setting. But how does the car actually know whether that road…

Why Every Driver Should Keep A Portable Jump Starter In The Car

A dead car battery has a nasty habit of showing up when you need your car the most. Whatever the reason, hearing that dreaded click when you turn the key isn't exactly how anyone wants to start their day. That's…

Why Do EVs Make That Weird Noise At Low Speeds? It's Actually A Safety Feature

One of the strangest things about driving an electric vehicle for the first time is realizing that it can make a sound when you can barely hear the car itself. At a parking-lot crawl, an EV might emit a futuristic…