Fourth-costliest: 1970 Porsche 911S from the Steve McQueen film Le Mans
Price: $1.4 million

RM's Kelleher says bids for this sports car shot way past expectations at auction primarily because of McQueen's association with the vehicle.

The actor not only drove the 200-horsepower car during Le Mans' opening scene, but owned it as part of his extensive auto collection.

Kelleher says the Porsche also has "all of the right elements in its history -- it's a very desirable collectible car for its period and it's in beautiful condition."

The seller also threw in all of the car's original paperwork, signed by McQueen himself before the actor's 1980 death.

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