Invention on Instagram: "In the 1980s Hot Wheels introduced a unique toy line called Crack-Ups that turned car crashes into entertainment. Instead of avoiding wrecks, these cars were built to collide head on, side by side, or from the rear. Each vehicle had spring loaded panels that would flip to reveal simulated dents, crumpled grills, and scratched sides whenever a crash occurred. The clever design made playtime feel more dramatic and interactive. After smashing them together, kids could simpl

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