Cadillac Models & History 1911

Sameas 1910 except:

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1911 Cadillac Touring


  • Basic price increased to $1700.


  • First front (foreward) door on an open Cadillac body
  • left side only on Foredoor Touring and Torpedo.
  • Torpedo body all steel on wood frame.
  • Limo body interchangeable with Touring and Coupe body interchangeable with Demi-tonneau (an inducement to year round motoring).


  • Wheelbase lengthened to 2946mm
  • Brake drum diameter increased to 355.6mm
  • Double dropped frame.

Drive line

  • Rear axle changed to Timken full floating, with torsion arm and two universal joints in the drive shaft.


  • Bore increased to 114.3mm
  • Schebler Model L carburetor used.
  • Bosch high tension magneto and Delco single coil system used for dual ignition.


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1911 Cadillac Thirty


1911 Cadillac Model Thirty


Serial numbers on plate on dash (with engine no.) Engine numbers were stamped on top surface of crankcase — in front of and to the left of number one (front) cylinder. Starting: 50000. Ending: 60018.


Model No. Body Style Seating Price
“Thirty” 2-dr. Touring 5P $1700
“Thirty” 2-dr. Demi-Tonneau 4P $1700
“Thirty” 3-dr. Foredoor Touring 5P $1800
“Thirty” 3-dr. Torpedo 4P $1850
“Thirty” Roadster 2P $1700
“Thirty” Roadster 3P $1700
“Thirty” 2-dr. Limousine 7P $3000
“Thirty” 2-dr. Coupe 3P $2250


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1911 Cadillac Model Thirty Demi Tonneau


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1911 Cadillac Model Thirty Demi Tonneau


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1911 Cadillac Model Thirty Demi Tonneau


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1911 Cadillac Model Thirty Demi Tonneau



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1911 Cadillac Thirty engine

Description Vertical, in-line, L-head. Four cylinders. Individual cast iron cylinder, copper water jacket
Bore & Stroke 114.3mm x 114.3mm
Displacement 4.693 Liters
Horsepower A.L.A.M. H.P.: 32.4
Main bearings Five
Valve lifters Mechanical — push rod — roller cam followers
Carburetor Float feed; Schebler Model L


Wheelbase 2946mm
Front/Rear Tread 1422mm; optional 1549mm
Tires 34″ x 4″ (Limousine 36″ x 4.5″)


1911 Cadillac Model Thirty


1911 Cadillac Model Thirty

Transmission Selective, sliding gear transmission
Speeds 3 Forward/1 Reverse
Control Position Right hand drive, controls to right
Clutch Leather faced cone clutch
Drive Shaft
Axle Full floating rear axle
Differential bevel drive, bevel gear differential
Overall ratio 3.43:1 (roadster 3.05:1, limo. 3.66:1)
Brakes Mech. brakes on two wheels — Service / foot / contracting — emergency / lever / expanding
Wheels Wood artillery wheels, 10 & 12 spoke, quick detachable rims
Wheel size 26 in. (Limo. 27 in.)
Optional Final drive ratios 3.43:1, 3.66:1



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1911 Cadillac Touring

Seat covers $40.00-60.00
Mohair tops $65.00-90.00
Prest-o-lite style B tank $25.00
Windshield $40.00
Jones electric horn, with storage battery $40.00


1911 Cadillac Notes

  • Introduced August, 1910.
  • Model year sales: 10018.
  • Henry M. Leland was president and general manager
  • Frank Johnson was chief engineer

1911 Automotive Notes

  • Industry produces 199,319 cars and 10,681 trucks
  • U.S. Court of Appeals reverses the 1909 decision of the U.S. District Court on the Selden Patent stating it was “valid but not infringed” by Ford and others. Thus payment of royalties to ALAM ceased.
  • James J. Storrow was president of GM until the end of January when Thomas Neal took over
  • Chevrolet Motor Company begins production
  • Studebaker buys out EMF to form Studebaker Corporation and drops the electric car
  • Oldsmobile Limited has a huge 6-cylinder engine 11.6 Liters
  • Buick sets a speed record of 20 miles in 13 minutes (148.6 km/h)
  • Stutz begins production after 11th place finish at Indianapolis 500 (averaging 110 km/h)
  • A Marmon Wasp wins the Indianapolis 500 at 6:42:8 (averaging 120 km/h)
  • Ford’s Model T prices drop to $680
  • William S. Knudsen joins Ford
  • Thomas Neal is president of GM
  • Painted centerlines first appear on highways near Detroit
  • International Motor Company (Mack) is formed
  • Diamond T Motor Car Company stops production of cars to focus on trucks
  • General Motors Truck Company is formed
  • Top model year production for 1911


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1911 Cadillac Touring


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1911 Cadillac