LaSalle spent thirteen years as Cadillac’s stylish, budget-friendly companion make, only to be discontinued in 1940 at nearly the peak of its popularity. This surviving 1940 example rides on a modern V8 and automatic transmission far removed from its original L-head engine and manual gearbox. Its final year of production still puzzles collectors who wonder why GM walked away from a car selling so well.
1940 Cadillac LaSalle V8-455 BB 3 Speed Automatic
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By the summer of 1940, one of General Motors’ most stylish experiments was quietly disappearing from showrooms, and almost nobody outside Cadillac’s boardroom knew it was coming. For thirteen years, LaSalle had done something remarkable: it let buyers with more taste than fortune drive a car that shared its bones with the flagship Cadillac, wearing sharper, more youthful lines at a fraction of the price. The example pictured here carries a big-block V8 and automatic transmission that no factory LaSalle ever left the assembly line with, a clue that someone, somewhere along the way, decided this particular car deserved a second act. So what actually killed LaSalle at the peak of its popularity, and why does its final year still matter to collectors today?
A Junior Cadillac With Senior Ambitions
LaSalle launched in 1927 as Cadillac’s companion make, styled by Harley Earl to give buyers Cadillac-caliber design and engineering at a lower price. It was positioned for “successful young people on their way up,” sold through Cadillac dealers but priced below the marque’s flagship. Despite the pedigree, it never quite hit the sales volumes GM hoped for and was nearly cancelled more than once during its run.
The Final Lineup, and a Second Life on the Road
For 1940, LaSalle’s last year, the lineup split into two series: the base 40-50 on GM’s B-body shell and the sportier 40-52 Special on the new “Torpedo” C-body, priced from about $1,240 for the base 40-50 all the way up to nearly $1,900 for a loaded 40-52 Special. Every 1940 LaSalle carried a 322-cubic-inch L-head V8 rated at 130 horsepower, paired with a three-speed manual transmission, a far cry from the big-block V8 and automatic gearbox riding under the hood of the car pictured here, which suggests this particular LaSalle has been treated to a modern driveline swap somewhere in its life. Even as GM pulled the plug on August 26, 1940, LaSalle went out on a high note: nearly 24,000 cars sold that year, its second-best total ever, proof the brand still had an audience even as corporate strategy moved on without it.
Harley Earl’s Fingerprints Are All Over This Car
Harley Earl led General Motors’ Art and Colour styling section starting in the late 1920s, and LaSalle stands as one of the first mass-production American cars shaped primarily by a dedicated stylist rather than an engineer. The template Earl established with LaSalle, giving design its own seat at the table alongside engineering, shaped GM’s entire product lineup for decades afterward.
GM Filled the Gap LaSalle Left Behind
General Motors never created a direct successor to LaSalle after 1940. Instead, Buick and Oldsmobile absorbed the junior-luxury role LaSalle had occupied, expanding their own upper-trim offerings to capture the buyers who once would have shopped a LaSalle showroom.
A Name GM Couldn’t Quite Let Go Of
General Motors revisited the LaSalle name years later, showing LaSalle II concept vehicles at its 1955 Motorama tour, but the brand never returned to actual production. The name lived on only as a design exercise, a reminder of how fondly GM’s own stylists remembered it.
Recognized as a Full Classic Today
The Classic Car Club of America designates LaSalle among its recognized prewar ‘Full Classic’ marques, a status reserved for cars judged to have exceptional engineering, styling, or luxury credentials. That recognition keeps well-preserved LaSalles in steady demand at collector auctions and concours events today.
Why Owners Swap in Modern Drivetrains
Prewar chassis and drivetrains, LaSalles included, are frequently upgraded with later V8s and automatic transmissions specifically so owners can drive them on modern roads and in modern traffic rather than trailering them to shows, exactly the kind of build represented by the car pictured here.
A Companion Make, Not a Badge-Engineered Clone
Despite sharing Cadillac dealer showrooms and much of Cadillac’s engineering approach, LaSalle used its own distinct body dies and generally lighter overall construction rather than simply being a trimmed-down Cadillac, giving genuine LaSalles road manners that felt noticeably different from their more senior stablemate.
Filling a Gap Between Buick and Cadillac
General Motors created LaSalle specifically to compete against Packard’s lower-priced lines and the Lincoln-Zephyr, giving GM a way to capture buyers who wanted genuine luxury-brand cachet without stretching all the way to a full Cadillac’s price tag.
Sharing Cadillac’s New Styling Language
For 1940, LaSalle’s bodies shared much of their basic styling theme with that year’s senior Cadillac lineup, part of a broader General Motors push toward smoother, more integrated fender lines across its top divisions just before the war interrupted civilian car production entirely.
An Early Adopter of Synchromesh
Cadillac and LaSalle were among the first American production cars to offer a synchromesh manual transmission, introduced back in 1928, sparing drivers from the double-clutching required by older gearboxes and giving GM’s senior divisions a genuine engineering bragging point years before LaSalle’s final model ever appeared.
Chassis That Found a Second Life After the War
Surplus prewar Cadillac and LaSalle chassis and running gear were popular raw material for postwar hot-rodders and special builders, prized for their solid, oversized components at a time when parts for building a custom car from scratch were otherwise genuinely scarce.
A Club Still Keeps the Marque Alive
The Cadillac-LaSalle Club, an active enthusiast organization, continues to support owners of both marques today, maintaining parts networks, judging standards, and a community built specifically around cars like this one decades after LaSalle itself stopped being built.
Available in Several Distinct Body Styles
For its final year, LaSalle offered its two-series lineup across several distinct body styles, including coupes, sedans, and convertibles, giving 1940 buyers real choice within a marque that was about to disappear entirely from Cadillac’s dealer network.
The Industry Went Quiet Just Two Years Later
The entire American auto industry halted civilian passenger car production in February 1942 to retool for wartime manufacturing, meaning LaSalle’s 1940 send-off came just ahead of an industry-wide shutdown that would have ended its run regardless of GM’s own internal decision.
1940 as a Snapshot Before Everything Changed
Cars built in 1940, LaSalles included, represent one of the last snapshots of prewar American automotive design before the war reshaped both the industry’s priorities and, later, its styling language entirely.
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