A gold Lamborghini model is on display at the Lamborghini showroom in Dubai yesterday. A prototype of the model that will be made of 500kg of gold and diamonds is on display in Dubai, the first stop ahead of a world tour later in the year. It is also the warm-up act for the real deal which is looking to get into the Guinness Book of Records, for an interior and exterior that will glitter with $2.9m worth of precious metals and gems.