Makes › Walter › Royal 12V · Rare production Ultra Rare
Walter
Royal 12V
Walter V12 luxury car of 1931, three built
Still being researched: identification guide, full specifications. Everything shown is checked against the cited sources. Know more? Send us a source.
Contents
01Overview
At a glance
- Built
- 3 Built
- Years
- Not yet verified
- Engine
- V12, OHV, two Stromberg carburettors · 5,879 cc / 5.9 LFactory: 5,879 cc
- Power
- 88.3 kW / 120 PSFactory: 120 PS
- Top speed
- 140 km/hFactory: 140 km/h
- Body
- Not yet verified
- Designer
- Not yet verified
- In this archive
- Not yet verified
- Surviving
- Not yet verified
Sources and any conflicting figures are in the sections below.
Why it matters
The Royal was Walter's 1931 top model, a V12 limousine and the most expensive Czechoslovak car when sold; the cabriolet by Petera cost 208,000 Kc.
How rare is it?
Six separate kinds of rarity – never combined into one number.
Each kind of rarity is rated separately and never combined.
02Production & history
Production
Every figure says what it counts.
| What is counted | Figure | Basis | Status |
|---|---|---|---|
| Total model productionWalter Royal V12 cars built; some sources give up to six | 31 | Factory production | 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
Only three cars were built, all shown at the 1931 Prague motor show, and one was driven by Jindrich Knapp to the Paris salon in 1931. The page says most sources held that none survived, with only an engine and a chassis, but a restored cabriolet was presented in 2017; some sources give up to six cars and about 13 to 15 engines built.
Variants
How each version differs from the standard Royal 12V.
No variants documented yet. Have a source? Contribute it.
03Specifications
Technical specifications
Engine
| Engine family | Not yet verified |
|---|---|
| Engine code | Not yet verified |
| Layout | V12, OHV, two Stromberg carburettors2 Registry reported |
| Displacement | 5,879 cc / 5.9 LFactory: 5,879 cc2 Registry reported |
| Bore | 76 mmFactory: 76 mm2 Registry reported |
| Stroke | 108 mmFactory: 108 mm2 Registry reported |
| Compression ratio | 5.0:12 Registry reported |
| Fuel system | Not yet verified |
| Power | 88.3 kW / 120 PSFactory: 120 PS2 Registry reportedSource gives koni (metric horsepower) |
| Power at | 3,000 rpm2 Registry reported |
| Torque | Not yet verified |
Transmission & drivetrain
| Gearbox | Not yet verified |
|---|---|
| Gears | Not yet verified |
| Driven wheels | Not yet verified |
Chassis, body & dimensions
| Chassis | Not yet verified |
|---|---|
| Front suspension | Not yet verified |
| Rear suspension | Not yet verified |
| Brakes | Not yet verified |
| Steering | Not yet verified |
| Body construction | Not yet verified |
| Wheelbase | 3,700 mmFactory: 3,700 mm2 Registry reported |
| Length | 5,015 mmFactory: 5,015 mm2 Registry reportedLimousine; the Petera cabriolet is 5180 mm long |
| Width | Not yet verified |
| Height | Not yet verified |
| Front track | Not yet verified |
| Rear track | Not yet verified |
| Kerb weight | 2,050 kgFactory: 2,050 kg2 Registry reportedLimousine |
| Dry weight | Not yet verified |
Performance
| Maximum speed | 140 km/hFactory: 140 km/h2 Registry reportedLimousine; cabriolet 145 km/h |
|---|---|
| 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.
Not yet documented. Have a source? Contribute it.
Sources
Each number links to the exact facts it supports.
-
1
Walter Royal 12V, 1931 (Auta5P ID 20102) Level C
- 3 Walter Royal V12 cars built; some sources give up to six
-
2
Walter Royal 12V, 1931 (Auta5P ID 20102) Level C auta5p.eu
- vidlicový dvanáctiválec (V12), rozvod OHV
- objem 5879 cm³
- vrtání 76,0 mm, zdvih 108,0 mm
- zdvih 108,0 mm
- komprese 5,0
- výkon 88 kW (120 koní) při 3000 ot/min
- 88 kW (120 koní) při 3000 ot/min
- rozvor náprav 3700 mm
- délka 5015 mm, šířka 1760 mm, výška 1750 mm
- pohotovostní hmotnost 2050 kg
- maximální rychlost 140 km/h
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