1957 FERRARI 250 TESTA ROSSA 

This is the most expensive car to ever be auctioned. the auction date is  sunday May 17, 2009

Ferrari captured ten victories in nineteen races from 1958 to 1961, including a class win at Le Mans with Phil Hill and Olivier Gendebien.

Experts say that this car can possibly exceed the most ever spent on a car which is around 21.7 million, that car being the GTO 250.