"Similar versions of the model without the celebrity provenance traditionally bring between $125,000 - $175,000 depending on mileage, condition and optional equipment," said Auctions America spokeswoman Amy Christie.
She did not name the buyer.
Car lovers and Trump supporters had lined up to admire the 2007 F430 coupe at a convention center in Fort Lauderdale 30 miles (50 kilometers) north of Miami.
The real-estate billionaire bought the Ferrari new for use as his personal car and owned it for just over four years.
He drove the car 2,400 miles. The rest of its mileage -- 6,000 miles -- was clocked by its second and current owner, who bought the Ferrari in 2011 and also remains anonymous.