HOT WHEELS® Kicks Off 40th Anniversary With Diamond-Encrusted Car At N. Y. Toy Fair Year-Long Celebration of Activities by HWC Press 02-15-08 Hot Wheels® today announced its year-long plans to celebrate the brand's 40-year heritage at the 105th American International Toy Fair®. Anniversary activities were kicked off with the unveiling of a custom jeweled 1:64-scale Hot Wheels® car, designed by celebrity jeweler Jason of Beverly Hills.This one-of-a-kind car, the most expensive in Hot Wheels® history, was made to commemorate the production of the four-billionth Hot Wheels® vehicle. The diamonds on the custom-made jeweled car, valued at $140,000, total more than 2,700 and weigh nearly 23 carats. The car is cast in 18-karat white gold, while the majority of the vehicle is detailed with micro pave-set brilliant blue diamonds, mimicking Hot Wheels® Spectraflame® blue paint. Under the functional hood, the engine showcases additional micro pave-set white and black diamonds.The Hot Wheels® flame logo found on the underbelly of the car is lined with white and black diamonds.