It was just a week ago a 1929 Bentley Blower auctioned for record-breaking £5,041,500 (7.8 million at current exchange rate) at Goodwood, now it’s a 1912 Silver Ghost that has become the most expensive Rolls Royce ever auctioned. Bonhams see the fierce bidding that ended at £4,705,500 ($7.2 million) for this century old car that features 7.3 liter engine capable of generating 50 brake horse power. Engine is ...