1911 Cadillac 40/50hp Model 30 Side-entrance Tonneau Car
Introduced in December 1908, the 1911 Cadillac Model 30 represented a major advancement in American automotive manufacturing. The automobile featured a 30-horsepower, four-cylinder L-head engine with a 255.4 cubic-inch displacement and five main bearings. Some sources list it with a larger 286 cubic-inch displacement generating 40 horsepower. The car rode on a 116-inch wheelbase with wood artillery wheels and detachable rims that measured 26 inches in diameter with 34×4 tires. Henry Leland, often called the “Master of Precision,” demanded manufacturing accuracy to within one-thousandth of an inch, an impressive standard for the period. Production reached 10,019 units in 1911, reflecting strong demand for this medium-priced luxury vehicle that offered excellent value and performance.
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