
One of the strangest survivors from General Motors’ Motorama era will cross the block at RM Sotheby’s Hershey auction in 2026. The 1956 Cadillac Eldorado Brougham Town Car is not simply a rare Cadillac. It is the only 1956 example of its kind, the earliest surviving Eldorado Brougham and a genuine GM dream car that somehow escaped the fate awaiting most experimental automobiles of its era. RM Sotheby’s estimates it will sell for $300,000 to $400,000.
Officially known as experimental model XP-48, the Town Car was created for the 1956 GM Motorama after the public responded enthusiastically to Cadillac’s original Eldorado Brougham concept a year earlier. Remarkably, much of the design work was done by 19-year-old Robert Cumberford under Herb Cadeau and GM styling boss Harley Earl. Its hand-laid fiberglass body incorporated center-opening doors, an open chauffeur’s compartment and a leather-covered formal roof over the passengers. Inside were air conditioning, an intercom, Wilton wool carpeting, gold-colored hardware, drink tumblers, a cigar humidor and other accessories designed to make the Cadillac look more like a private lounge than an automobile.
The Motorama drew 2.3 million visitors across five cities that year, and the Cadillac later traveled to the Paris Salon. It was a glimpse of the ultra-luxury Eldorado Brougham that Cadillac would finally put into production for 1957.
GM Tried to Get Rid of It

Today an important concept car would probably disappear into a corporate heritage collection. In the 1950s, automakers often treated yesterday’s dream cars as yesterday’s garbage. Once the show circuit ended, many elaborate one-off concepts were dismantled or destroyed. In 1958, the Eldorado Brougham Town Car was sent to Warhoops Used Auto & Truck Parts in Michigan along with two LaSalle II concepts and Chevrolet’s 1955 Biscayne dream car. The expectation was that they would disappear.
They didn’t. Warhoops owner Harry Warholak Sr. intentionally spared the cars from complete destruction. The Cadillac lost its engine and drivetrain, which went to a local high school, but the body was hidden first in a trailer and later under cover. According to the account preserved by RM Sotheby’s, Warholak hoped to someday restore it for his daughter’s wedding. That never happened, but his reluctance to scrap the car ultimately saved one of Cadillac’s most important prototypes.
For decades, rumors circulated among collectors about strange GM concepts hidden behind the Warhoops fence. In 1989, collector Joe Bortz finally acquired all four surviving dream cars from the Warholak family. The Cadillac later passed to J.C. Whitney owner Roy Warshawsky, who began restoring it, and then to Eldorado Brougham enthusiast Dick Baruk, who completed the work. Unlike many concepts, the Town Car was eventually made capable of moving under its own power, using an appropriate 1956 Cadillac drivetrain.
From Junkyard Relic to Six-Figure Cadillac

The restoration preserved an extraordinary amount of the original show-car character. The gold-plated rear-compartment hardware returned, proper 18-inch Sabre wheels were sourced and the Cadillac once again looked like the machine Motorama visitors had seen under the lights in 1956. One amusing discovery was that not every piece of Motorama extravagance was quite what it appeared to be: the custom thermos displayed in the passenger compartment was merely a prop. The car itself, however, was very real. It had been constructed on an actual Cadillac frame rather than existing as a nonfunctional styling shell.
Its second life became almost as interesting as its first. Collector John O’Quinn acquired the restored Cadillac in 2006, and it later joined another major collection. In 2013 it won Best in Class at the Amelia Island Concours d’Elegance. Now it is returning to public attention at Hershey, where the $300,000 to $400,000 estimate seems almost secondary to what is actually being offered.
This is not simply a beautifully restored 1950s Cadillac. It is a survivor from an era when General Motors spent enormous sums building futuristic automobiles, showed them to millions of people and then sometimes ordered them destroyed when the show was over. The Eldorado Brougham Town Car should have vanished nearly 70 years ago. Instead, somebody at a Michigan junkyard decided not to crush it. That decision is why someone can buy it this week. View the auction.




