1931–1935 Cadillac Series 355 Fleetwood Town Car: Open Chauffeur Compartment

Cadillac built the Series 355 from 1931 through 1935 around a 353-cubic-inch L-head V-8, a three-speed synchromesh transmission, and rear-wheel drive. The Fleetwood Town Car placed an enclosed formal passenger body behind an open chauffeur's compartment, with the body fitted to one of Cadillac's longer passenger-car chassis according to year and catalog specification.

Best known for combining Cadillac's established V-8 chassis with Fleetwood's division-window formal coachwork, the Town Car represents the final phase of chauffeur-driven Cadillac design before all-enclosed limousines became the prevailing American formal-body pattern.

The Series 355 replaced the Series 353 for 1931, although the new designation did not correspond to a new 355-cubic-inch displacement. Its five-year life covered the 355-A, 355-B, 355-C, and 355-D designations, a period in which Cadillac moved from upright early-1930s bodies and beam-axle front suspension to lower bodies, X-braced frames, and independent front suspension. A correct Town Car consequently requires more than a recognizable body profile: chassis year, Fleetwood body identity, drivetrain specification, and restoration history all matter.

Quick Facts

The following table separates the basic Series 355 specification from details that can differ among individual Fleetwood bodies. Exact Town Car production totals are not consistently documented in readily available factory summaries.

The Town Car was a body configuration rather than a separate engine or performance series. Cadillac chassis records and Fleetwood body documentation therefore carry more evidentiary weight than a later registration that merely describes a car as a 355 Town Car.

Why the Fleetwood Town Car Matters

A town car divided its occupants by both architecture and social function. The owner and guests sat beneath a fixed roof in a trimmed rear compartment, while the chauffeur worked ahead of a glass division in a compartment that was open or protected by removable weather equipment. That arrangement had developed in the horse-drawn era and survived into the 1930s chiefly among expensive formal automobiles.

Fleetwood's role is central. The Pennsylvania coachbuilder had become part of General Motors during the 1920s, and its name identified Cadillac's more formal and specialized bodies. By the Series 355 period, Fleetwood was not simply an outside shop mounting an unrelated body on a delivered chassis. Its work was integrated into Cadillac's manufacturing and catalog system, although low-volume bodies still retained construction methods, hardware, and trim details closer to custom coachbuilding than mass-production Fisher sedans.

The 1931–1935 span also records a rapid engineering transition. A 1931 355-A and a 1935 355-D share the basic 353-cubic-inch V-8 concept, but they do not share the same body architecture, front suspension, frame proportions, or styling vocabulary. For collectors, that makes the Fleetwood Town Car both a formal-body study and a record of Cadillac's response to changing roads, styling practice, and Depression-era luxury demand.

Historical Context and Development

Cadillac after the Series 353

The Series 355 arrived for 1931 as the successor to the Series 353. Cadillac also offered its V-12 and V-16 cars during this period, leaving the V-8 to carry much of the division's regular luxury-car business. The 355 was less mechanically elaborate than those multi-cylinder flagships, but it could receive similarly formal Fleetwood coachwork.

The Great Depression sharply reduced the number of buyers able to commission chauffeur-driven automobiles. Cadillac responded with a wide body catalog, increasingly modern styling, and greater mechanical refinement rather than abandoning the upper market. Competitors included Packard's Eight and Super Eight lines, Lincoln's Model K, Pierce-Arrow's large eights and twelves, and Marmon's final luxury models.

From upright formality to the 355-D

The 1931 355-A retained the visual grammar of the late 1920s: a tall radiator, separate headlamps, pronounced fenders, running boards, and a nearly vertical formal body. The 355-B and 355-C brought annual changes to the hood, lamps, bumpers, fenders, and body detailing, as was customary before General Motors adopted longer styling cycles.

The 1934 355-D was a more substantial break. Cadillac's bodies became lower and more streamlined, while the chassis range was reorganized around Series 10, 20, and 30 designations with different wheelbases. The new proportions placed the body lower between the wheels, softened the earlier vertical surfaces, and incorporated the radiator and fenders into a more unified design. A formal Town Car necessarily retained an upright rear roof and division, but its cowl, hood, fenders, and stance followed the newer Cadillac idiom.

Motorsport and homologation played no material role in the Town Car's development. Cadillac's priorities were quiet operation, flexibility, braking effort, steering control, rear-compartment isolation, and dependable progress with a heavy formal body.

Engine and Drivetrain

The Series 355 used Cadillac's 353-cubic-inch V-8, despite the model number suggesting otherwise. It was a 90-degree side-valve, or L-head, design with a bore and stroke commonly listed as 3.375 by 4.9375 inches. Its long stroke favored low-speed pulling ability, an appropriate quality in a formal car carrying a substantial Fleetwood body.

Fuel entered through a carburetor and intake system designed for tractability rather than high engine speed. Battery-and-coil ignition, distributor firing, liquid cooling, and pressure lubrication followed Cadillac practice. Carburetor specification, air-cleaner form, distributor details, manifolds, and ancillary equipment changed during the five model years, so restorers should not treat every 353 V-8 installation as visually interchangeable.

Cadillac rated the 1931 355-A at 95 bhp. Later literature and secondary references do not always present output on an identical basis, and a single horsepower figure should not be applied indiscriminately to every 355-B, 355-C, and 355-D. Torque and governed engine-speed figures are also absent from many surviving summaries.

A single-plate dry clutch fed a three-speed manual transmission with synchromesh. From there, an enclosed propeller shaft drove a conventional rear axle. The transmission reduced the double-declutching burden associated with older luxury cars, but first gear in transmissions of this era was commonly intended principally for starting rather than continuous use.

The core dimensions below are dependable reference points. Year-specific carburetion, compression ratio, and rated output should be established from the correct Cadillac shop manual, parts book, or sales literature for the chassis under inspection.

The value of the 353 V-8 lies in its torque delivery and refinement, not in a high specific output. In a properly rebuilt engine, large displacement, conservative valve timing, and a heavy flywheel produce smooth acceleration from low speed. Incorrect ignition advance, blocked cooling passages, poor carburetor calibration, or excessive valve clearance can make the same engine feel coarse and underpowered.

Chassis, Suspension, and Braking

The early Series 355 chassis used conventional axles and semi-elliptic leaf springs. Cadillac's 1934 redesign introduced independent front suspension on the 355-D, accompanied by a more heavily cross-braced frame and lower body mounting. The live rear axle remained suspended by leaf springs.

Fleetwood formal bodies combined substantial timber framing with metal exterior panels and specialized division, roof, and door structures. Construction details vary by body and year, but the condition of the concealed wood is fundamental. A body can display acceptable paint while door pillars, roof rails, sill members, or division framing have lost structural integrity.

Four-wheel mechanically actuated brakes were used during the Series 355 years, with assistance and linkage details varying by model year. Correct adjustment depends on sound drums, concentric linings, free pivots, properly equalized rods or cables, and functioning assistance where fitted. Converting a neglected system without first understanding the original design can erase valuable hardware without addressing worn drums or loose suspension joints.

This table shows the major chassis changes relevant to identification and restoration. It does not imply that every wheelbase carried every Fleetwood Town Car body.

Wheel size, hub treatment, sidemount configuration, and tire section must be checked against the exact year and body order. Oversized modern tires can increase steering effort and interfere with sidemount wells, while incorrect wheel offset can affect both appearance and steering geometry.

Driving Experience and Road Manners

A sound Series 355 moves away with the deliberate response expected from a long-stroke V-8 and a heavy formal body. The throttle should produce a steady increase in speed rather than a sudden rush. Low engine speed, flywheel mass, and close attention to ignition timing matter more than high-rpm power.

At parking speed the steering is heavy, especially with broad tires or dry kingpins. Once rolling, effort falls and the long wheelbase encourages straight-line stability. The beam-axle 355-A, 355-B, and 355-C transmit more surface disturbance through the steering than a 355-D with independent front suspension, although worn joints and incorrectly set toe can make either chassis wander.

The synchromesh gearbox is notably easier to use than a non-synchronized transmission, but it still rewards deliberate shifts. A hurried movement can expose worn synchronizers, clutch drag, or tired engine mounts. Brake feel depends heavily on adjustment: a sorted mechanical system has a firm, progressive pedal, while uneven pull usually points to unequal adjustment, contaminated linings, worn linkage, or distorted drums.

Rear passengers experience the car differently from the chauffeur. The division and enclosed body reduce engine and wind intrusion, while the long chassis moderates sharp road inputs. Body roll is considerable by later standards, and the tall formal rear body makes smooth steering and braking part of competent driving rather than mere etiquette.

Identification and Originality

Chassis, engine, and Fleetwood body records

A Series 355 predates the standardized 17-character VIN. Identification rests on the original Cadillac serial or engine-number evidence, chassis stampings or plates applicable to the year, and the Fleetwood body tag. Locations and numbering practices must be checked against the correct Cadillac service and parts literature rather than a modern generalized decoder.

The Fleetwood tag is especially important because a town-car body can be confused with a limousine that has been altered, a sedan fitted with a division, or a composite assembled from more than one car. The body number, style designation, chassis dimensions, door arrangement, cowl construction, and division framing should agree. A convincing profile alone does not establish identity.

Matching numbers in this context do not carry the same simple meaning as they do on a later muscle car. Collectors want an engine and chassis relationship consistent with Cadillac's original numbering practice, accompanied by a body tag and documentary history that support the car's configuration. A replacement 353 engine may make a car usable, but it should be disclosed and evaluated separately from an original installation.

Correct equipment and finishes

Restorers should examine the carburetor, distributor, starter, generator, manifolds, cylinder heads, water-pump arrangement, transmission case, axle, brake hardware, wheels, instruments, lamps, bumpers, hood furniture, and radiator shell for year compatibility. Components from adjacent Cadillac years often fit, which explains why otherwise complete cars can accumulate a mixture of 355-B, 355-C, and 355-D parts.

Fleetwood interiors require particular restraint. The chauffeur's compartment commonly used durable leather, while the enclosed rear compartment could employ broadcloth, fine carpets, wood garnish, plated fittings, folding occasional seats where specified, speaking equipment, and privacy hardware. Materials and patterns should follow body records and surviving original evidence, not a generic notion of prewar luxury.

Paint formulas and Fleetwood trim selections were order-sensitive. Modern color names or computer-matched paint codes do not prove factory correctness. Build information, old photographs, protected paint beneath moldings, original upholstery fragments, and period Fleetwood samples provide stronger evidence. Modern metallic flake, excessive gloss on chassis parts, and mirror-polished hardware can make an expensive restoration less historically convincing.

Series 355 Variant and Chassis Breakdown

Cadillac changed the suffix as the Series 355 evolved. These designations identify model-year engineering and styling groups, not special performance editions.

A Town Car body should not automatically be assigned to a chassis merely because that chassis has a sufficiently long wheelbase. Fleetwood style records, mounting points, cowl alignment, serial evidence, and body-number documentation must agree. Exact production figures for each Series 355 Fleetwood Town Car style are not consistently documented in consolidated public records.

Performance and Dimensional Specifications

Cadillac did not market the Fleetwood Town Car as a performance model, and surviving period documentation does not provide one dependable set of acceleration, quarter-mile, top-speed, or curb-weight figures for every body and chassis combination. Formal bodies varied enough in structure and equipment that a single figure would be misleading.

The wheelbase data remain useful because they distinguish the major 355-D chassis and help expose bodies mounted on an unsuitable frame.

Road speed depends on body weight, axle ratio, tire diameter, engine condition, and tune. Any precise performance claim should be tied to a dated factory publication or period test of the same body and chassis, not to a lighter Series 355 coupe or sedan.

Compared With Related Cadillacs

Series 353

The 1930 Series 353 is the direct predecessor and shares the basic displacement that continued into the 355. Its chassis detailing, styling, and body catalog belong to the preceding model year, so a Series 353 should not be relabeled as a 355 simply because both use a 353-cubic-inch V-8.

Cadillac V-12 and V-16 models

The contemporary Series 370 V-12 and Series 452 V-16 supplied more cylinders, greater prestige, and, in many cases, still more elaborate Fleetwood coachwork. They also bring higher engine-rebuilding costs and a smaller specialist parts pool. A Series 355 Town Car offers the same broad formal-body concept with Cadillac's more numerous V-8 powertrain.

LaSalle

LaSalle was General Motors' companion marque to Cadillac and used different chassis and engine specifications. Similar Harley Earl-era styling cues can create superficial resemblance, but a LaSalle chassis, identity plate, radiator treatment, and drivetrain do not make it a lower-priced version of the same Fleetwood Town Car.

1936 Series 70 and 75

Cadillac's 1936 range introduced the Series 70 and long-wheelbase Series 75 with the newer 346-cubic-inch monobloc V-8. Those cars belong to a different engineering family. Their all-enclosed formal sedans and limousines also illustrate how quickly the open-front Town Car receded from regular use.

Ownership and Restoration Notes

Mechanical service parts for Cadillac's V-8 are more obtainable than unique Fleetwood body hardware, but availability should not be confused with inexpensive supply. Engine bearings, pistons, valves, valve guides, timing components, water-pump parts, clutch pieces, and ignition items often require prewar Cadillac specialists, careful machining, or rebuilding of the original component.

Cooling deserves attention before regular driving. Sediment collects in old blocks and radiators, water-pump shafts and seals wear, and an inaccurately restored radiator core may lack the capacity of the original design. Overheating blamed on the engine can begin with retarded ignition timing, a lean mixture, dragging brakes, or restricted exhaust.

The long-stroke V-8 requires a machine shop familiar with poured or precision-fitted bearing work, crankshaft condition, side-valve geometry, and low-speed oiling requirements. Installing modern parts without measuring clearances can produce low oil pressure, piston noise, or valve trouble. The original oil-pressure behavior should be assessed using the correct factory specifications and a verified gauge.

Transmission complaints commonly involve clutch drag, worn synchronizers, deteriorated bearings, damaged selector parts, or hardened seals. Rear-axle noise can indicate bearing wear or an incorrectly established ring-and-pinion contact pattern. These are heavy assemblies, and casual disassembly can destroy settings or components that are difficult to replace.

The body is usually the larger financial risk. Ash or other structural timber may decay beneath sound-looking sheet metal, causing sagging doors, cracked paint, loose hinges, and movement at the division. Reconstructing a Town Car roof, division, or door frame requires patterns, woodworking skill, and repeated fitting of the metal skin and interior trim.

Unique Fleetwood items such as division regulators, interior handles, robe rails, occasional-seat fittings, speaking equipment, roof hardware, lamps, garnish moldings, and chauffeur-compartment trim can take years to locate. Reproduction lenses, rubber, running-board material, wiring, and some mechanical parts are available, but many formal-body fittings must be restored rather than replaced.

Buyer and Inspection Points

A worthwhile inspection starts with identity and structure, then moves to mechanical condition. A running engine cannot compensate for an undocumented body or a roof frame that requires complete reconstruction.

A pre-purchase inspection should involve both a prewar Cadillac mechanic and a restorer who understands wood-framed formal coachwork. Either specialist working alone may miss the car's largest liability.

Collector and Market Relevance

Collectors distinguish a genuine Fleetwood Town Car from the more numerous closed sedans and limousines because its open chauffeur's compartment preserves an older formal-body tradition. Desirability rises with documented chassis and body identity, complete Fleetwood hardware, original interior evidence, known ownership, and a restoration that respects the differences among 355-A, 355-B, 355-C, and 355-D equipment.

Rarity alone does not guarantee demand. A Town Car's size limits storage and transport, its open front reduces convenience in poor weather, and its wood-framed body can consume more restoration labor than the V-8 chassis. Cars with missing division hardware, altered roofs, incorrect engines, or undocumented body swaps therefore require careful valuation even when outwardly impressive.

Auction interest tends to favor established provenance and high-quality, historically restrained restoration. Excessive plating, modernized interiors, incorrect wheels, and generic two-tone paint can weaken collector appeal. Conversely, an unrestored car with intact tags, original fittings, and usable upholstery patterns may provide better evidence than a fully refinished example assembled from mixed-year components.

Cultural and Club Relevance

The Fleetwood Town Car belongs to the culture of chauffeur-driven hotels, estates, corporate fleets, embassies, and ceremonial transport rather than competition. Its architecture records a period when the person driving and the people being driven occupied separate environments, with different upholstery, weather protection, controls, and social expectations.

Cadillac and LaSalle clubs, coachwork historians, and organizations devoted to recognized prewar classics provide the most useful community for these cars. Club judging can expose incorrect annual details, while archival photographs and unrestored comparison cars help restorers resolve questions that general repair manuals do not address.

There was no meaningful hot-rodding, racing, or homologation lineage attached to the Fleetwood Town Car. Its historical value comes from Cadillac engineering, surviving formal coachwork, and the rapidly disappearing custom-body practices of the early 1930s.

Frequently Asked Questions

What engine is in the 1931–1935 Cadillac Series 355?

The Series 355 uses Cadillac's 353-cubic-inch, approximately 5.8-liter, 90-degree L-head V-8. The 1931 355-A was rated at 95 bhp, while output and equipment references for later years should be checked against the relevant factory literature.

Why is it called the Series 355 if the engine displaces 353 cubic inches?

The 355 designation succeeded the Series 353 as a model-series name and did not describe a 355-cubic-inch engine. Cadillac retained the 353-cubic-inch V-8 throughout the Series 355 period.

What is the difference between a Fleetwood Town Car and a limousine?

A Town Car has an enclosed rear passenger compartment and an open, or selectively weather-protected, chauffeur's compartment. A limousine encloses both front and rear compartments beneath a continuous roof, usually with a division between them.

How can a genuine Series 355 Fleetwood Town Car be identified?

Identification requires consistent Cadillac serial or engine-number evidence, the correct wheelbase and chassis features, a credible Fleetwood body tag, and body construction that agrees with the documented style. Because these cars predate the standardized VIN, no single modern VIN lookup establishes authenticity.

What do 355-A, 355-B, 355-C, and 355-D mean?

They identify successive Series 355 model groups. The 355-A corresponds to 1931, the 355-B to 1932, the 355-C to 1933, and the 355-D to 1934–1935. The 355-D range was further organized into Series 10, 20, and 30 chassis with 128, 136, and 146-inch wheelbases.

What are the most expensive Series 355 Town Car restoration problems?

Failed structural wood, missing Fleetwood hardware, an incorrect or incomplete body, and a poorly rebuilt V-8 are the largest concerns. Division components, roof framing, door structure, garnish moldings, and formal interior fittings can be more difficult to replace than ordinary service parts.

Are parts available for a Cadillac Series 355?

Specialists can supply or rebuild a useful range of engine, ignition, cooling, clutch, brake, wiring, rubber, and chassis parts. Unique Fleetwood Town Car hardware is much scarcer and often must be repaired, recreated from an original pattern, or sourced from another correct body.

Collector Takeaway

The Series 355 Fleetwood Town Car matters because it preserves two histories in one automobile. Beneath it is Cadillac's proven 353-cubic-inch V-8 chassis, developed across five difficult Depression-era model years. Above it is a formal body built around a division window, an open driving compartment, specialized trim, and a social arrangement that would soon disappear from ordinary Cadillac catalogs.

The best example is not necessarily the one with the deepest paint or the brightest nickel. It is the car whose Cadillac chassis, Fleetwood body, annual mechanical details, interior evidence, and documentary history tell the same story. When those elements agree, a 355 Town Car becomes a precise surviving record of Cadillac engineering and American coachbuilding at the moment the custom-body era began giving way to the modern all-enclosed luxury car.