A better approach would have been to establish a European division of Cadillac via an earlier TASC (by way of an expanded Vauxhall-Opel-Holden / VOH Interchangeability Programme), which would serve as another approach to helping further integrate Vauxhall and Opel at an earlier stage beyond the OTL Opel Kadett A / Vauxhall Viva HA and common OHV engine (in terms of platforms if not in engines).
The ATL European Cadillac division would encompass a three car from the flagship Opel KAD A/B (aka Diplomat A/B) derived model, followed by a mid-range V platform (aka Rekord C) model and entry-level SWB V platform based model (as Vauxhall considered with the Cerian proposal during the U car project that became the mk1 Vauxhall Cavalier / Opel Ascona B).
Engines would be a trickier matter for the European market Cadillac range though approving the Vauxhall Slant-Four based Vauxhall V8 petrol / diesel would be a start (so GM Europe has its own V8 engine in the same way the Aussies developed the Holden V8). Opel already had the CiH inline-6, yet what was really needed IMHO was either an earlier European version of the OTL GM 60-degree V6 to better challenge the Ford Essex (UK) / Cologne (Germany) V6 engines (and like the latter putting out more power in less emissions strangled non-US form), or a 90-degree V6 derived from the Vauxhall V8 engine.
Another idea that draws upon the Chevrolet 153 4-cylinder (plus smaller Opel K 180 via Chevrolet 110 unit) and Chevrolet Straight-6 based Pontiac OHC-6, would be to develop a smaller 1.6/1.7-2.0-litre 4-cylinder / 2.5-3-litre 6-cylinder OHC/DOHC engine family for the mid-range and entry-level European Cadillacs (that is still related to the aforementioned engines yet further developed).
The non-European versions could make use of SBC V8 and GM 90-degree V6 (ideally all-alloy) or Oldsmobile V8 and related V6 engines, depending on how GM in the US goes about rationalising the engine ranges of their various US marques in ATL.
A Cadillac V12 was looked at during the 1960s, however power and low-speed torque barely topped Cadillac’s existing 7.0-liter V-8 with debate on whether the V12 had a 60-degree angle or a 90-degree angle. Either way not consideration was given to making the V12 a modular design. - https://www.hagerty.com/media/autom...2-engine-of-the-future-never-made-production/
Ideally the styling language for the 1970s-1980s European Cadillac trio would draw upon the 1976 Vauxhall VX Prestige prototype (below) prior to evolving into a less Americanized version of the OTL fourth/fifth generation Seville.
The ATL European Cadillac division would encompass a three car from the flagship Opel KAD A/B (aka Diplomat A/B) derived model, followed by a mid-range V platform (aka Rekord C) model and entry-level SWB V platform based model (as Vauxhall considered with the Cerian proposal during the U car project that became the mk1 Vauxhall Cavalier / Opel Ascona B).
Engines would be a trickier matter for the European market Cadillac range though approving the Vauxhall Slant-Four based Vauxhall V8 petrol / diesel would be a start (so GM Europe has its own V8 engine in the same way the Aussies developed the Holden V8). Opel already had the CiH inline-6, yet what was really needed IMHO was either an earlier European version of the OTL GM 60-degree V6 to better challenge the Ford Essex (UK) / Cologne (Germany) V6 engines (and like the latter putting out more power in less emissions strangled non-US form), or a 90-degree V6 derived from the Vauxhall V8 engine.
Another idea that draws upon the Chevrolet 153 4-cylinder (plus smaller Opel K 180 via Chevrolet 110 unit) and Chevrolet Straight-6 based Pontiac OHC-6, would be to develop a smaller 1.6/1.7-2.0-litre 4-cylinder / 2.5-3-litre 6-cylinder OHC/DOHC engine family for the mid-range and entry-level European Cadillacs (that is still related to the aforementioned engines yet further developed).
The non-European versions could make use of SBC V8 and GM 90-degree V6 (ideally all-alloy) or Oldsmobile V8 and related V6 engines, depending on how GM in the US goes about rationalising the engine ranges of their various US marques in ATL.
A Cadillac V12 was looked at during the 1960s, however power and low-speed torque barely topped Cadillac’s existing 7.0-liter V-8 with debate on whether the V12 had a 60-degree angle or a 90-degree angle. Either way not consideration was given to making the V12 a modular design. - https://www.hagerty.com/media/autom...2-engine-of-the-future-never-made-production/
Ideally the styling language for the 1970s-1980s European Cadillac trio would draw upon the 1976 Vauxhall VX Prestige prototype (below) prior to evolving into a less Americanized version of the OTL fourth/fifth generation Seville.
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