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Opel Diplomat

car model

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJun 3, 2026
Entity authorityQ1501607
Source-derived summary

The Opel Diplomat is a luxury car manufactured by Opel from 1964 to 1977. Opel's top-ranging models were traditionally the Admiral and Kapitän, introduced in 1938 and 1937 respectively.

In 1964 these models were joined, in the so-called "KAD" (Kapitän, Admiral, Diplomat) range, by the new Opel Diplomat. In most respects the three were badge-engineered versions of the same vehicle.

Diplomat A (1964–1968)

In February 1964 Opel introduced a new range of flagship models as successors to the Opel Kapitän P-LV of 1959/1963. These KAD models (Opel Kapitän, Admiral and Diplomat; also referred to as "The Big Three" by Opel) were available with 2.6-litre and 2.8-litre in-line six-cylinder petrol engines (100 or 125 PS), or a V8-Chevrolet small-block engine 283 (4.6-litre) teamed with a two-speed Powerglide automatic transmission 190 PS (140 kW). The latter engine was supplanted in the saloon by the 5.4-litre Chevrolet small-block "327" V8 with 230 PS (169 kW) in October 1966. As the company's range-topping model, the Diplomat was available only with the V-8.

A Diplomat Coupé, with the 327 engine only, was also available from 1965 to 1967 in limited numbers. The coupé was built by coachbuilder Karmann and cost DM 25,500 (as much as seven Volkswagen Beetles).

Editorial summary

Begin with the source’s own compact description: “Opel Diplomat” is car model. The dossier treats that line as a proposition to test through Opel, Diplomat and model, not as a finished interpretation.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current lead gives the account dated anchors—1964, 1977, 1938, 1937—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, Opel, Diplomat and model is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “car model” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jun 3, 2026. The linked authority identifier is Q1501607. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1964, 1977, 1938 and 1937.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
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The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Opel Diplomat”, its source revision and the description used here.
  2. Expand the search: follow Opel Diplomat primary sources, Opel Diplomat archive and Opel research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Opel Diplomat”?
  2. What terminology or title could unlock a more precise catalogue search?
  3. Which cited source is closest to the event, object or claim?
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Source & attribution

This entry incorporates text from Opel Diplomat” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.