Background
Without going into too much detail about the origin of the model name, the Ninety-Eight first appeared as 98 in 1941 to distinguish the two Oldsmobile Custom Cruiser 90-series models - the 96 was powered by a straight-six and the 98 by an eight-cylinder engine.
Fast forward to 1977 and the tenth generation Ninety-Eight was being assembled exclusively at GM’s plant in Lansing, Michigan. The new model was downsized compared to its predecessor - which had large decks at the front and rear that the USS Nimitz would be proud of - but cabin space was increased.
Whilst the base LS trim model was only available as a four-door sedan, the premium Regency trim also came as a two-door coupe.
Power options offered initially were either the standard 350 cu-in (5.7-litre) or optional 403 cu-in (6.6-litre) Oldsmobile V8. The following year a 350 cu-in (5.7-litre) diesel motor was also introduced and in the early eighties a 252 cu-in Buick V6 became the standard engine, with a 307 cu-in (5.0-litre) V8 replacing the 350.
In 1982, the Regency Brougham was introduced as the flagship model, only in Sedan form. The LS trim was dropped, relegating Regency to base status. The Brougham featured plush “Prima” velour upholstery with embroidered emblems, a tiltable steering wheel, thick-pile carpeting and opera lamps in the C-pillars. Externally, the Brougham had wire wheels, halogen headlamps and a padded vinyl roof.
Curiously Brougham refers to a carriage (and later car) body style where the driver sits outside the passenger cabin. Happily this is just a throwback and the “posh” term was used extensively by US manufacturers from the seventies to the nineties to denote their upper trim level.
Production of the tenth generation Ninety-Eight ended in March 1984, whereupon it was succeeded (unsurprisingly) by the eleventh.








