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The Dodge Challenger has always been a big-engine muscle icon, but in 2023 Dodge flipped the whole script with the SRT Demon 170, a production car built explicitly to obliterate acceleration records. With more than 1,000 horsepower, it became the most powerful street-legal muscle car on the planet.

Sand dragging, or sand drag racing, is exactly what it sounds like: two vehicles line up, hit the throttle, and blast across a straight strip of sand to see who gets there first. But don’t let the simple premise fool you. This is a motorsport that’s equal parts drag racing, off-road engineering, and hang-on-for-dear-life adrenaline.

Long before turbocharging was cool, before Porsche, Saab, and BMW made forced-induction famous, Oldsmobile dropped a turbocharged V8 into an everyday coupe. The result was the Jetfire: brief, brilliant, and beset with problems that helped doom it before its time.

Sometimes the best ideas arrive before the world is ready. These 20 cars introduced tech, design, or engineering concepts that didn’t immediately catch on, but years later look like clairvoyant leaps into the future.

In 1969, Chevrolet released a street-legal car that pushed performance limits far beyond those of typical midsize vehicles. It combined extreme horsepower with minimal safety features, making it one of the most dangerous cars on public roads.

Not every great Chevrolet engine made it onto a showroom poster. Some lived in the shadows—built for racers, hidden inside grocery-getter bodies, or quietly assembled in rooms most factory workers never entered.