The world's most expensive model car will soon be up for auction -- a 22-carat gold-plated, diamond encrusted Lamborghini Aventador LP 700-4 Coupe, with a starting price of $7.8 million. Nick Dietz ... more 
The world's most expensive model car will soon be up for auction -- a 22-carat gold-plated, diamond encrusted Lamborghini Aventador LP 700-4 Coupe, with a starting price of $7.8 million. Nick Dietz reports on the prototype now on display in Dubai. less 
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Fri, Sep 20, 2013 2:33 PM EDT