Cadillac introduced the new V-63 in 1924, ushering in a host of refinements to the already superlative engine and chassis.

Central to the V-63 was its 90-degree, 314.5 cubic-inch V-8, now updated with an ingenious counter-balanced, cross-plane crankshaft.

This revolutionary new design allowed for a significantly lighter flywheel and afforded the V-63 exceptional refinement.

Such was its smooth and quiet nature that even Rolls-Royce of America took notice, the firm’s chief engineer stating that “the quartered-crank V8 would make obsolete all long crankshaft engines.” Paired with the powerful new engine was a new strengthened chassis with four-wheel brakes, a first for any Cadillac.

Eleven catalog body styles were available, ranging in price from $3,085 for the tourer to $4,600 for the flagship limousine.

The V-63 was a technical marvel of America’s golden age of motoring, and it was a tremendous success for Cadillac, selling 25,000 examples in its two-year production run—yet very f...