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What Petra and Tamara Ecclestone want ... they get! The sexy socialites, who are huge fans of $10K Birkin bags, are the daughters of billionaire Formula 1 head honcho Bernie Ecclestone.

The Croatian sisters, who certainly know how to make heads turn, enjoyed a double date over the weekend at Katsuya in Hollywood. Check out just ONE of Petra's pricey rides ... a $200K Lamborghini! She also just received a brand new white Rolls-Royce Phantom as a wedding gift.

So HOW rich are they? Petra, 22, recently tied the knot to businessman James Stunt in a lavish, $5 million wedding in Rome. Her Vera Wang wedding dress was $130,000. The wedding entertainment happened to be the one and only Black Eyed Peas who performed for a reported $2 million.

The newlyweds came home to their Los Angeles mansion once owned by Aaron and Candy Spelling. Petra paid $85 million cash for her new digs!

Her stunning 27-year-old sister Tamara, a model and underwear designer, has been dating beau Omar Khyami for one year. Could another mega-million dollar wedding be in the near future? Papa Ecclestone better save up ... NOT.

The sky's the limit for the Ecclestone girls!