petrolLPG
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6 photos from Wikimedia Commons · credits & licences
- 1. Opel Diplomat: No machine-readable author provided. Gryffindor assumed (based on copyright claims).· Public domain
- 2. Opel Diplomat A V8 Coupé 1965-1967 frontleft 2008-07-17 U: Detectandpreserve· CC BY-SA 3.0
- 3. Opel Diplomat E automatic in red, rear right: Mr.choppers· CC BY-SA 3.0
- 4. Opel Diplomat V8 (7906540122): nakhon100· CC BY 2.0
- 5. Opel Diplomat V8 1Y7A6126: Alexander Migl· CC BY-SA 4.0
- 6. Opel Diplomat interior: No machine-readable author provided. Gryffindor assumed (based on copyright claims).· Public domain
base stats
Bars compare against all cars: 600 hp, 0 g CO₂, 400k registrations, €150k.
what the fuel types mean
- petrol Cheapest to buy, simple, but fuel is expensive in NL.
- LPG Runs on autogas (cheap fuel) via a conversion; extra road tax in NL.
spec sheet
- built
- 1969–1977
- body
- sedan
- engine
- 2.8 L–4.6 L
- cylinders
- —
- turbo
- —
- power
- 134–261 hp
- drive
- —
- gearbox
- —
- seats
- 5
- doors
- 4
- weight
- 1,722 kg
- fuel use
- —
- CO₂
- —
- US rating
- —
- EV range
- —
- US size class
- —
- avg new price NL
- —
Ranges cover every version ever sold. Blank means the sources don't say.
🇳🇱 on Dutch roads
97 are registered in the Netherlands today, #1474 of all models. Most common build year: 1973 (18 cars).
19691977
Cars still registered, by year of first registration (RDW).
names it's registered under (2)
- Diplomat 79
- Diplomat Automatic 18
Sources: RDW open data.Updated 2026-10-24.