The world’s first Gumball fake Lamborghini might be heading toward Hot Wheels territory. This video explores design ideas, colours, and details needed to turn a real rally car into a collectible toy.

Thirty years after thumbing their rakish noses at the law and the 55-mph speed limit, the two star cars in “The Gumball Rally” return to the Los Angeles River for a wheel-to-wheel rematch. [This ...