1931 Bentley 8-Litre (Murphy/Hershey coachwork, standard wheelbase)
- Engine
- Large-displacement six-cylinder, original factory unit rebuilt to specification

Chassis YR5085 is a 1931 Bentley 8-Litre on the standard short-wheelbase frame, unique as the only example bodied by an American coachbuilder: the Walter M. Murphy Company of Pasadena, to a design by the young Franklin Q. Hershey, who would later pen the 1955 Ford Thunderbird. Delivered new to Los Angeles financier Conrad H. Matthiessen Jr., the car later passed through Mexico, where it was found abandoned, before a meticulous four-year restoration by Hofmann & Mountfort reunited it with its original engine. Subsequent ownership brought a further full restoration by R.C. Moss of Bedford, after which it placed second in class at Pebble Beach. It survives with its original engine, chassis, coachwork, and drivetrain intact, and is regarded as the sole truly American Bentley 8-Litre.
Ownership
- —Auction saleSold US$3,195,000
- 1931-02-01 →Factory deliveryConrad H. Matthiessen Jr.partial documentation
Chassis delivered new via Walter M. Murphy Company of Pasadena on his behalf; heir to a major American sugar fortune and investment partner at a New York Stock Exchange firm operating in Los Angeles.
- 1948 → 1958Acquisition unknownBill Rivaspartial documentation
Discovered the car abandoned in a hotel garage, relocated it to Mexico City, and began mechanical work including fitting wheels from a Mercedes; progress stalled over several years.
- 1958 →Private saleIgnacio Cuencapartial documentation
Eager to put the car back in use, fitted a commercial truck engine in place of the original; the original engine was retained separately and passed along with the car.
- → 1971-10-01Acquisition unknownPorfirio Diazpartial documentation
Advertised the car in a US automotive publication in 1969, leading to a prolonged negotiation before sale.
- 1971-10-01 → 1986Private saleDon Weberfull documentation
Seasoned Bentley collector who negotiated purchase over two years; commissioned a thorough four-year restoration by Hofmann and Mountfort in Britain, reuniting the original engine with the car and recreating missing or altered components.
- 1986 →Private saleNorman Hersteinpartial documentation
Long-standing enthusiast based in Seattle who acquired the car from Weber; subsequently it moved through several West Coast owners.
- → 2012Acquisition unknownWest Coast collectors (multiple)none documentation
During this period the car received a restoration refresh and gained wide coverage in automotive literature; no individual owners are named.
- 2012 →Acquisition unknownCurrent ownerfull documentation
Commissioned a comprehensive new restoration by marque specialists R.C. Moss of Bedford; car accompanied by a technical report from Dr. Clare Hay confirming original stampings and components.
- Date unknownAcquisition unknownScandinavian mining engineer based in Zacatecasnone documentation
Believed to have brought the car to a silver-mining town in Mexico; ultimately abandoned the vehicle at a hotel garage without settling debts.
Competition
- 1976Bentley Drivers Club ConcoursBentley Drivers Club Concours at Kensington GardensClass winner and Best Vintage Bentley
First major showing after the Hofmann and Mountfort restoration was completed; car was then shipped back to the United States.
- 2007Pebble Beach Concours d'Elegance
Exhibited following a freshening of the earlier restoration; no placing is recorded in the prose.
- —Pebble Beach Concours d'Elegance2nd in Class
Took place after the R.C. Moss restoration was finished post-2012; narrowly beaten by another original open 8-Litre that went on to claim Best of Show.
Maintenance & restoration
- 1948Mechanical
Wooden artillery wheels sourced from a Mercedes were fitted, and initial work was started on the original engine, though little progress was ultimately made.
Carried out by or under the direction of Bill Rivas in Mexico City.
- 1958Modification
The original engine was removed and a Diamond T truck engine installed to return the car to running order; the original engine was kept and remained with the car.
Carried out during Ignacio Cuenca's ownership; the front crossmember was also removed as part of the engine swap.
- 1971RestorationHofmann & Mountfort
Full four-year nut-and-bolt restoration including rebuilding and reinstalling the original engine, fabricating a replacement front crossmember, and recasting a missing hammered-silver door handle in brass with hand-applied texture matching the originals.
Commissioned by Don Weber; the replacement door handle was recast by Murphy's former assistant shop foreman using the original 1931 hammer.
- 2012RestorationR.C. Moss
Complete fresh restoration to factory standards, covering full refinishing of every component, meticulous body finishing in the original livery, and detailed interior work including mother-of-pearl accents, intricate hardware, and embossed leather upholstery.
Commissioned by the current owner; all major original components including engine, chassis, gearbox, steering box, differential, axles, and coachwork were retained and correctly rebuilt.
- —Restoration
A partial freshening of the earlier restoration was carried out ahead of the 2007 Pebble Beach exhibition.
Performed during the tenure of one or more West Coast owners; no workshop named.
Are you the owner of this car?
This car's public record is built from its auction and competition history. Register your ownership and privately add your own records to make it a verified Legacy Metrics passport — provenance that backs your car's value at sale and gives your insurer evidence to price against. Roy reviews and verifies every registration personally.