Minerva 30CV History
Post-WWI flagship six-cylinder — a 5.3-litre Knight sleeve-valve grand tourer that placed Minerva among Europe's top luxury marques.
Photo: “File:1921 Minerva OO 30 CV-Autoworld Bruxelles-01.JPG” by Varech / Wikimedia Commons — Public domain. Cropped to 16:9.
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When Minerva restarted automobile production after World War I, it anchored its range around two large Knight sleeve-valve models: the 3.6-litre four-cylinder 20CV and the 5.3-litre six-cylinder 30CV, both introduced in 1920. The Knight engine — adopted under worldwide licence from 1908 — used double sleeve valves instead of poppet valves, producing an unusually smooth and silent running quality that Minerva marketed alongside Rolls-Royce as a benchmark of refinement.
Both models used monobloc engines, vacuum fuel feed, cone clutches (later plate clutches from 1921), four-speed gearboxes, and cantilever rear springing. The 30CV in particular attracted coachbuilders and royal households: the kings of Belgium, Sweden, and Norway were numbered among Minerva owners, as were American film stars and industrialists — including, reportedly, Henry Ford.
In 1923 the range was refreshed with smaller models — the 2-litre four-cylinder 15CV and a revised 3.4-litre six-cylinder 20CV with four-wheel brakes — before the entire post-war lineup was superseded by the Type AK and Type 12-14 for 1927.
Generations
First post-war generation · 20CV / 30CV
Photo: “File:1921 Minerva OO 30 CV-Autoworld Bruxelles-01.JPG” by Varech / Wikimedia Commons — Public domain. Cropped to 16:9.
3.6-litre four and 5.3-litre six; cone clutch, four-speed box, cantilever rear springing — the flagship Knight-engined range that re-established Minerva after WWI.
1921 Photo: “File:1921 Minerva OO 30 CV tourer by Vanden Plas fl3q.JPG” by André Ritzinger / Wikimedia Commons, licensed under CC BY 3.0. Cropped to 16:9.
Revised 1923 range · 15CV / 20CV (second)
Photo: “File:Minerva 30CV Type AC '25 (1).jpg” by Oq10pass / Wikimedia Commons — CC0 1.0. Cropped to 16:9.
Smaller 2-litre 15CV added alongside a revised 3.4-litre 20CV, both gaining standard four-wheel brakes; superseded by the AK and 12-14 for 1927.
1923 Photo: “File:Minerva "Berline de Luxe" - 1923 - vue de trois-quarts.jpg” by Loudumo / Wikimedia Commons — CC0 1.0. Cropped to 16:9.
1924 Photo: “File:1924 Minerva AB 20 CV landaulette f3q.JPG” by André Ritzinger / Wikimedia Commons, licensed under CC BY 3.0. Cropped to 16:9.
1925 Photo: “File:1925 Minerva AB 20 CV landaulette by Mulliner f3q.JPG” by André Ritzinger / Wikimedia Commons, licensed under CC BY 3.0. Cropped to 16:9.
1926 Photo: “File:1926 Minerva AF 30 CV landau coupe fl3q.JPG” by André Ritzinger / Wikimedia Commons, licensed under CC BY 3.0. Cropped to 16:9.
Body styles
- Touring car
- Limousine
- Landaulette
- Saloon
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