https://www.cnet.com/roadshow/news/project-gold-porsche-911-turbo-sells-at-auction/

Part of the value, of course, comes from the fact that Project Gold is a literal one-of-one project, with Porsche giving it the series number "001/001." But the rest of the appeal comes from the fact that the continuation 993 is a seriously lustworthy vehicle for any car enthusiast. Intended to show off the prowess of Porsche Classic and Porsche Exclusive Manufaktr in restoring and rebuilding classic models, Project Gold was built from the ground up in Germany.

Porsche took a classic 993 Turbo body shell, fitting in a new interior with a huge amount of gold and carbon-fiber trim. Porsche also installed a new 3.6-liter twin-turbo flat-six engine good for 450 horsepower. Parts for the car's attendant all-wheel-drive system and six-speed manual transmission also came from Porsche Classic.