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1931 Cadillac Series 370-A Twelve Navigation
In 1930 Cadillac started a 'Cylinder Race' by introducing an overhead valve, 452 cubic-inch V-16 engine. Marmon followed suit with a V-16. In 1931 Cadillac introduced a V-12 resulting in its having a V-8, a V-12, and a V-16 engine. By 1932 several other luxury brands, such as Lincoln, Pierce Arrow, Packard, and Auburn, joined the race with V-12 engines. By 1931 Cadillac offered more models and body styles than any other make with 3 wheelbase lengths, 3 engines, and over 60 body styles both production and custom.
The 1931 V-12 Model 370 has a 140-inch wheelbase chassis with a 368 cubic-inch, 135-horsepower, overhead valve engine. It incorporates unique hydraulic valve lash adjusters, among the first engines with this feature. A Cadillac V-12 roadster was the Pace Car for the 1931 Indianapolis 500. Most enthusiasts who have driven good examples of the V-16 and V-12 feel that the V-12 is a better driving car, partly as a result of the much lower weight on the front end, with almost as much acceleration and speed as the V-16.
This Convertible Coupe was purchased by the present owner in June 2012. After driving it about 20 times for evaluation a complete restoration was started. It is a correct authentic restoration with matching engine, transmission, and body numbers.
The 1931 V-12 Model 370 has a 140-inch wheelbase chassis with a 368 cubic-inch, 135-horsepower, overhead valve engine. It incorporates unique hydraulic valve lash adjusters, among the first engines with this feature. A Cadillac V-12 roadster was the Pace Car for the 1931 Indianapolis 500. Most enthusiasts who have driven good examples of the V-16 and V-12 feel that the V-12 is a better driving car, partly as a result of the much lower weight on the front end, with almost as much acceleration and speed as the V-16.
This Convertible Coupe was purchased by the present owner in June 2012. After driving it about 20 times for evaluation a complete restoration was started. It is a correct authentic restoration with matching engine, transmission, and body numbers.
2020 RM Sothebys : Scottsdale Arizona
Pre-Auction Estimates :
USD $225,000-USD $275,000
Lot was not sold
1931 Cadillac Series 370-A Twelve Auction Sales
Recent Sales of the Cadillac Series 370-A Twelve
(Data based on Model Year 1931 sales)
| 1931 Cadillac V-12 Touring by Fleetwood Chassis#: 10-3701 Sold for USD$106,400 2025 RM Sothebys : The Arizona Auction | |
| 1931 Cadillac V-12 Seven-Passenger Imperial Sedan by Fisher Sold for USD$100,100 2024 RM Sothebys : Hershey | |
| 1931 Cadillac Fleetwood Convertible Coupe Chassis#: 1002411 Sold for USD$291,500 2024 Mecum : Dallas | |
| 1931 Cadillac V-12 Fleetwood Convertible Coupe Sold for USD$154,000 2024 Broad Arrow Auctions : Amelia | |
| 1931 Cadillac 370-A V-12 Roadster by Fleetwood Chassis#: 10-894 Sold for USD$187,000 2023 RM Sothebys : Hershey | |
| 1931 Cadillac V-12 Dual Windshield Sport Phaeton Sold for USD$162,400 2023 Worldwide Auctioneers : The Auburn Auction | |
| 1931 Cadillac convertible coupé V12 370A par Fleetwood Chassis#: 1005430 Sold for USD$129,090 2023 Artcurial : Retromobile | |
| 1931 Cadillac Model 370A V-12 Sport Phaeton Sold for USD$224,000 2022 Broad Arrow Auctions : The Passion for the Drive | |
| 1931 Cadillac V-12 Convertible Coupe by Fleetwood Sold for USD$198,000 2022 RM Sothebys : The Hershey Auction | |
| 1931 Cadillac V-12 Victoria Coupe Chassis#: 1002367 Sold for USD$68,100 2022 Worldwide Auctioneers : The Auburn Auction | |
| 1931 Cadillac 370A V-12 Fleetwood Sport Phaeton Chassis#: 1003326 Sold for USD$418,000 2022 Mecum : Monterey | |
| 1931 Cadillac 370A V-12 Roadster Chassis#: 1004524 Sold for USD$257,600 2021 Worldwide Auctioneers : The 14th Annual Auburn Auction | |
| 1931 Cadillac 370A V-12 Dual Cowl Sport Phaeton Chassis#: 1001581 Sold for USD$346,000 2021 Worldwide Auctioneers : The 14th Annual Auburn Auction | |
| 1931 Cadillac V-12 370-A Convertible Coupe Sold for USD$100,800 2021 Gooding & Company : Pebble Beach Concours Auction | |
| 1931 Cadillac V-12 Sold for USD$192,500 2021 Mecum : Kissimmee | |
| 1931 CADILLAC V12 PHAETON Chassis#: 1001774 Sold for USD$187,000 2020 Barrett-Jackson : Scottsdale, AZ | |
| 1931 Cadillac 370 Roadster Sold for USD$88,000 2019 Mecum : Chicago | |
| 1931 Cadillac V-12 Five-Passenger Sedan Sold for USD$36,850 2019 RM Auctions : Auburn Fall | |
| 1931 Cadillac V-12 Phaeton by Fleetwood Sold for USD$192,500 2019 RM Auctions : Auburn Fall | |
| 1931 Cadillac 370-A All Weather Phaeton Chassis#: 1004488 Sold for USD$121,000 2019 Mecum : Monterey |
Cadillac Series 370-A Twelves That Failed To Sell At Auction
1931 Cadillac Series 370-A Twelve's that have appeared at auction but did not sell.
| Vehicle | Chassis | Event | High Bid | Est. Low | Est. High |
|---|---|---|---|---|---|
| 1931 Cadillac 370A V-12 Convertible Coupe | 1003102 | 2025 Worldwide Auctioneers : The Auburn Auction | |||
| 1931 Cadillac 370 V-12 Convertible Coupe | 1000250 | 2025 Mecum : Kissimmee | $200,000 | ||
| 1931 Cadillac V12 Series 370A Five Passenger Phaeton | 2024 Bonhams : Amelia Island Auction | $90,000 | $120,000 | ||
| 1931 Cadillac V-12 Series 370A Seven Passenger Dual Windshield Touring Coachwork by Fleetwood | 2024 Bonhams : The Scottsdale Auction | $100,000 | $125,000 | ||
| 1931 Cadillac V-12 Roadster | 2020 Mecum : Glendale | $100,000 | |||
| 1931 Cadillac V-12 Convertible Coupe by Fleetwood | 2020 RM Sothebys : Scottsdale Arizona | $225,000 | $275,000 | ||
| 1931 Cadillac 370-A V-12 Roadster | 1002070 | 2020 Worldwide Auctioneers : Scottsdale Arizona Auction | |||
| 1931 Cadillac V-12 Series 370A Roadster | 1003333 | 2019 Worldwide Auctioneers : Pacific Grove Auction | |||
| 1931 Cadillac V-12 Phaeton in the style of Fleetwood | 2018 RM Sothebys : Fort Lauderdale | $160,000 | $200,000 | ||
| 1931 Cadillac 370A Two Door Sport Coupe | 2017 Russo & Steele : Newport Beach | ||||
| 1931 Cadillac 370-A V12 Coupe | 1000451 | 2015 H & H Auctions Imperial War Museum | |||
| 1931 Cadillac V12 Seven-Passenger Phaeton | 2014 WorldWide Auctions The Houston Classic Motorcar Auction | $160,000 | $180,000 | ||
| 1931 Cadillac V-12 Rumble Seat Coupe 2013 CCCA Senior First Place | 1001141 | 2013 Mecum Auction Anaheim 2013 | $180,000 | ||
| 1931 Cadillac V-12 Convertible Coupe | 2013 Auctions America Auburn Fall | $170,000 | |||
| 1931 Cadillac V-12 Roadster Restored with Only 47,481 Original Miles | 2012 Mecum Dallas, TX | $145,000 | $150,000 | $200,000 | |
| 1931 Cadillac 370-A V-12 Roadster | 1002070 | 2012 RM Auctions St. Johns, Michigan | $160,000 | $190,000 | $225,000 |
| 1931 Cadillac Series 370A Fleetwood Roadster | 2012 Leake Auctions Tulsa | $18,000 | |||
| 1931 Cadillac V-12 Roadster | 2012 Branson Auction Spring 2012 | $197,100 | |||
| 1931 Cadillac Model 370 V12 S | 1162-10-1 | 2011 RM Auctions Hershey | $70,000 | $90,000 | $110,000 |
| 1931 CADILLAC 370A V12 ROADSTER | 1003473 | 2011 Worldwide Auctions The Auburn Auction | $175,000 | $225,000 | |
| 1931 Cadillac V-12 Five-Passenger Phaeton by Fleetwood | 1000378 | 2011 RM Auctions Concours d'Elegance at St. Johns | $200,750 | $170,000 | $210,000 |
| 1931 CADILLAC FLEETWOOD ROADSTER | 2011 Auctions America Spring Carlisle | $95,000 | |||
| 1931 Cadillac 12 Cyl Dual Cowl Phaeton | 2009 Leake Auctions Dallas 37th Annual Leake Auto Auction Market Hall | $95,000 | |||
| 1931 Cadillac 12 Cyl Dual Cowl Phaeton | 2009 Leake Auctions Dallas 37th Annual Leake Auto Auction Market Hall | $102,000 | |||
| 1931 Cadillac 370A Phaeton | 2009 Mecum Monterey Auction | $90,000 | |||
| 1931 Cadillac V12 All-Weather Sport Phaeton | 1002654 | 2009 Bonhams Automobiles d'Exception à Retromobile | $180,000 | $240,000 | |
| 1931 Cadillac V12 Convertible Coupe | 101039 | 2004 Vintage Motor Cars at Meadow Brook Hall | $96,000 | $100,000 | $125,000 |
| 1931 CADILLAC SERIES 370 DUAL COWL PHAETON | 2003 Kruse Auction Auburn, IN | $67,000 | |||
| 1931 CADILLAC FLEETWOOD 370 A 4 DR PHAETON | 2003 Kruse Auction Auburn, IN | $100,000 | |||
| 1931 CADILLAC FLEETWOOD ROADSTER | 2003 Kruse Auction Auburn, IN | $340,000 |
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1931 Cadillac Series 370-A Twelve
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