Contents
01Overview
At a glance
- Built
- Not yet verified
- Years
- 1946–1951
- Engine
- Front-mounted overhead-valve straight-six · 4,455 cc / 4.5 LFactory: 4,455 cc
- Power
- 119 kW / 162 PSFactory: 160 hp · converted
- Top speed
- Not yet verified
- Body
- Not yet verified
- Designer
- Philippe Charbonneaux (frontal styling)
- In this archive
- Not yet verified
- Surviving
- 14 (independently researched)
Sources and any conflicting figures are in the sections below.
Why it matters
The 175 and 175 S were Delahaye's big post-war 4.5-litre chassis and its first left-hand-drive models, with only 51 built and 14 known to survive. A 175 S won the 1951 Monte-Carlo Rally.
How rare is it?
Six separate kinds of rarity – never combined into one number.
Each kind of rarity is rated separately and never combined.
Photos
Exterior, interior and detail photos with their licences.
Delahaye 175 / 175 S (Wikimedia Commons search)
Photo: spencer77 · CC BY 2.0
Delahaye 175 / 175 S (Wikimedia Commons search)
Photo: Rex GrayCropped, faces blurred, signature removed by Mr.choppers · CC BY-SA 2.0
02Production & history
Production
Every figure says what it counts.
| What is counted | Figure | Basis | Status |
|---|---|---|---|
| Total model production14 Type 175/175 S known to survive per Bonhams | 142 | Surviving examples | Independently researched |
| Total model productionType 175 and 175 S chassis built (14 survive) | 511 | Surviving examples | Independently researched |
Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.
History
Shown at the 1946 Paris Salon, the 175 used an enlarged 4,455 cc version of Delahaye's overhead-valve six, offered with one, two or three carburettors, and a Cotal four-speed semi-automatic gearbox. The chassis had Dubonnet-type independent front suspension, a De Dion rear axle and Lockheed hydraulic brakes; Philippe Charbonneaux styled the front end. With no in-house coachworks, Delahaye had every chassis bodied by an independent firm, so each car differs. Production ended in 1951, the year a 175 S driven by Trévoux won the Monte-Carlo Rally.
Variants
How each version differs from the standard 175 / 175 S.
No variants documented yet. Have a source? Contribute it.
03Specifications
Technical specifications
Engine
| Engine family | Not yet verified |
|---|---|
| Engine code | Not yet verified |
| Layout | Front-mounted overhead-valve straight-six2 Independently researched |
| Cylinders | 63 Independently researched |
| Displacement | 4,455 cc / 4.5 LFactory: 4,455 cc2 Independently researched |
| Bore | 94 mmFactory: 94 mm2 Independently researched |
| Stroke | 107 mmFactory: 107 mm2 Independently researched |
| Compression ratio | Not yet verified |
| Valvetrain | Overhead valves4 Independently researched |
| Fuel system | Solex carburettor (single Solex AIP on the 175; three Solex AIP quoted for a higher-output 175 version)4 Independently researched |
| Power | 119 kW / 162 PSFactory: 160 hp · converted2 Independently researchedSource states bhp (brake horsepower, mechanical). |
| Power at | Not yet verified |
| Torque | Not yet verified |
Transmission & drivetrain
| Manufacturer | Cotal3 Independently researched |
|---|---|
| Gearbox | Cotal four-speed semi-automatic2 Independently researched |
| Gears | 43 Independently researched |
| Driven wheels | Rear3 Independently researched |
Chassis, body & dimensions
| Chassis | Not yet verified |
|---|---|
| Front suspension | Independent, Dubonnet system, coil spring and oil-bath damper units3 Independently researchedStated by Christie's for the Type 180, described as the long-wheelbase 175 with otherwise identical specification. |
| Rear suspension | De Dion axle, semi-elliptic springs, Houdaille dampers3 Independently researchedAs above (Type 180 stated identical to the 175). |
| Brakes | Hydraulic drums on all four wheels3 Independently researchedAs above. |
| Steering | Not yet verified |
| Body construction | Not yet verified |
| Wheelbase | 2.95 mFactory: 2.95 m2 Independently researched |
| Length | Not yet verified |
| Width | Not yet verified |
| Height | Not yet verified |
| Front track | Not yet verified |
| Rear track | Not yet verified |
| Kerb weight | Not yet verified |
| Dry weight | Not yet verified |
Performance
| Maximum speed | Not yet verified |
|---|---|
| 0–100 km/h | Not yet verified |
| Fuel tank | Not yet verified |
“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.
04Colours & options
Factory colours & interiors
Original paint and trim, with the number of cars in each where a source gives it.
Not yet documented. Have a source? Contribute it.
Factory options & codes
Codes are shown exactly as written by the manufacturer.
Not yet documented. Have a source? Contribute it.
05Individual cars
Chassis register
Every documented car, with its colours, history and where it is now. Open a row for the full record. Known chassis are not automatically authenticated originals.
Not yet documented. Have a source? Contribute it.
Competition history
Every race result of the individual cars, in date order. Click a chassis number to open its full record in the register.
Not yet documented. Have a source? Contribute it.
Auction & sale history
Documented public sales of the individual cars. Click a chassis number to open its full record in the register.
Not yet documented. Have a source? Contribute it.
See one in person
Museums where an example of this car can be seen.
No example is documented on public display yet. Have a source? Contribute it.
06Reference
Identification guide
How to tell an original from a replica or later conversion.
A genuine 175/175 S has a 4,455 cc overhead-valve six (94 mm bore, 107 mm stroke), Cotal four-speed semi-automatic gearbox, Dubonnet-type front suspension, a De Dion rear axle and left-hand drive; the 175 wheelbase is 2.95 m. Bodies vary because every chassis went to an outside coachbuilder.
Sources
Each number links to the exact facts it supports.
-
1
1950 Delahaye 175 S Coach | Bonhams Level B
- 51 Type 175 and 175 S chassis built (14 survive)
-
2
1950 Delahaye 175 S Coach, chassis 815042 – Les Grandes Marques à Monaco, lot 145 Level B Bonhams · 2024-05-10
- Only 14 Type 175/175 S models are known to survive
- a development of the existing overhead-valve six
- gave a capacity of 4,455cc
- 94mm bore
- 107mm stroke
- 160/164bhp (triple carburettors)
- Cotal four-speed semi-automatic transmission
- 2.95m for the 175
-
3
Christie's lot 3870688: 1950 Delahaye Type 180 Chapron limousine Level C Christie's (archived 2021) · 2021-03-24
- six cylindres en ligne, 4455 cm3
- Cotal pre-selector gearbox
- four speed ... Cotal pre-selector gearbox
- rear wheel drive
- Dubonnet ... independent
- Type 180 ... otherwise identical specifications
- de Dion axle, semi-elliptic springs and Houdaille shock absorbers
- four wheel drum, hydraulic
-
4
Delahaye, destin ephemere Level D Doctissimo blog "Phedor" (archived 2011) · 2011-08-10
- soupapes en tête
- un carburateur Solex AIP sur 175 ... 3 carburateurs Solex AIP, sur 175 seulement
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