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1911 Cadillac Model 30 Demi-Tonneau

  • Chassis Number: 50361
Demand for Cadillacs had risen by 1910, so much so that the company was pre-selling all seven models, and in 1911, production reached a new record of 10,019 cars. 1911 would be the final year for the Demi-Tonneau, which allowed quick conversion from a four-seat touring car to a stylish two-seat runabout. It was priced at $1,700, which was identical to that of the Roadster and the standard Touring car. Standard equipment on the Model 30 included hand-buffed leather upholstery, a Delco ignition and a Bosch magneto, gas headlamps and a gas generator, a pair of side oil lamps, a tail lamp, a horn, a toolset and a tire repair kit. 1911 would be the last year any Cadillac would be fitted with gas headlamps and oil lamps.

Cadillac increased is standard L-head four-cylinder engine to 286.3 cubic inches in 1911, resulting in a power increase from 28.9 to 32.4 A.L.A.M. horsepower. This example has been restored before it was acquired by the current owner in 2005. It is finished in a blue body, black fenders, and a light grey chassis, running gear and wheels. There are black button-tufted leather seats and a black canvas top. There is a full set of Gray and Davis side lamps, headlamps, and a tail lamp. Other equipment includes a New Haven clock, a 70-mph Cadillac speedometer, a folding windshield, and all-white tires.

In 2010, this Demi-Tonneau was offered for sale at the Vintage Motor Cars of Meadow Brook where it was estimated to sell for $80,000 - $100,000. As bidding came to a close, the car was sold for the sum of $79,200 including the buyer's premium.

By Daniel Vaughan | Aug 2010

2010 RM Auctions - Vintage Motor Cars of Meadow Brook

Pre-Auction Estimates :
USD $80,000-USD $100,000 
Sale Price :
USD $79,200

2005 Vintage Motor Cars at Amelia Island

Pre-Auction Estimates :
USD $90,000-USD $120,000 
Sale Price :
USD $99,000

1911 Cadillac Model 30 Auction Sales

Recent Sales of the Cadillac Model 30

(Data based on Model Year 1911 sales)
1911 Cadillac Model 30 Roadster
Sold for USD$44,000
  2022 RM Sothebys : The Hershey Auction
1911 Cadillac Model 30 image  1911 Cadillac Model 30 image  
1911 Cadillac 40/50hp Model 30 Side-entrance Tonneau Car
Chassis#: 59483
Sold for USD$57,218
  2017 Bonhams : The Beaulieu Sale
 
1911 Cadillac Model 30 Demi-Tonneau
Chassis#: 50361
Sold for USD$79,200
  2010 RM Auctions - Vintage Motor Cars of Meadow Brook
1911 Cadillac Model 30 image  1911 Cadillac Model 30 image  
1911 Cadillac Model 30 Demi Tonneau
Chassis#: 50361
Sold for USD$99,000
  2005 Vintage Motor Cars at Amelia Island
1911 Cadillac Model 30 image  1911 Cadillac Model 30 image  

Cadillac Model 30s That Failed To Sell At Auction

1911 Cadillac Model 30's that have appeared at auction but did not sell.
VehicleChassisEventHigh BidEst. LowEst. High
1911 Cadillac Model 30 Four-Passenger Demi-Tonneau333722021 RM Sothebys : Hershey $90,000$110,000

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1911 Cadillac Model 30

Additional valuation insight and sales data
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Other Cadillac Model 30 model years

1911 Cadillac Model 30 Vehicle Profiles

1911 Cadillac Model 30 vehicle information
Roadster
Engine #: 59268
1911 Cadillac Model 30 vehicle information
Demi-Tonneau
Chassis #: 33372
Engine #: 58750
1911 Cadillac Model 30 vehicle information
Touring
Chassis #: 53029
1911 Cadillac Model 30 vehicle information
Touring
Chassis #: 58609
Engine #: 31319