The firm behind the F40 LM race car upgraded this road-going model with new turbos. Significant weight savings were also achieved, stripping 300 lbs (136 kg) from the car. RM Sotheby’s expects this tweaked F40 to sell for up to $4.35 million. The Ferrari F40 is automotive royalty, and with an estimated value that may exceed $4 million, this example is more special than most. Built by the same firm responsible for the legendary F40 LM, this road-going model is one of the most powerful ever built.