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Packard built its early success as the standard American luxury car with the four-cylinder Thirty of 1907-1912 and the mighty Six of 1912-1915. But the model that really cemented Packard's reputation as a make of the highest rank was the 1916-1923 Packard Twin Six, which one-upped Cadillac's 1915 V-8 with four more cylinders and lasted with relatively few changes for eight years: a remarkably long run. The Twin Six was the chief reason why, when the wealthy ordered a custom-bodied car, they tended to choose a Packard chassis. Jesse Vincent, Packard's chief engineer, liked the 12-cylinder layout for three reasons: performance, smoothness, and silence. This meant a heavy crankcase and crankshaft and a rigid flywheel. But a Twelve or "Twin Six," Vincent continued, would provide the same rigidity and smoothness with less piston, crankcase, flywheel, and crankshaft weight -- and provide more horsepower and torque, to boot. He preferred a V-12 to a V-8 because a V-8 would require a wider frame, larger turning radius, and more complicated steering gear.
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發表於 2025-9-24 21:35:22
