For that sort of money, you could buy ten actual Aventadors.The rims are cast from solid gold and platinum, as is the entire interior, seats, cockpit and steering wheel. 700 diamonds have been used in each seat with high-quality clear diamonds for the headlights\' LEDs and colored precious stones for the rear lights. However, the customer that buys the model car will determine what materials are finally used.The material value of the chosen precious metals and stones alone is $3 million and will be auctioned this month with a base price of $5 million. Upon making the sale, a considerable portion of this will be donated to charity and the 1:8 model car will enter the Guinness World Records as the world\'s most expensive model car. German car model specialist Robert Guelpen, famed for his mindboggling $2.93 million Bugatti Veyron toy, has attempted to create the most expensive and most precious model car in the world.Based on the Lamborghini Aventador LP 700-4, the body and doors are made of carbon and formed in a conclave oven at high temperature and pressure just like the actual supercar, with 1/1000mm thin thread solid gold wrapped around the carbon fibers for a unique finish.