Isuzu Gemini I gallery (1974–1987)

The first-generation Isuzu Gemini, introduced in 1974, was based on General Motors' global T-body platform (Opel Kadett C) and featured a traditional rear-wheel-drive layout.

The first-generation Isuzu Gemini debuted in November 1974 as a strategic step for the Japanese manufacturer into the global compact car market. Developed on General Motors' T-body platform, the car shared its core architecture and engineering roots with the European Opel Kadett C. Available body styles primarily included a two-door coupe and a four-door sedan. Under the bonnet, it housed a range of petrol engines spanning 1.6 to 1.8 liters, alongside durable diesel powerplants, paired with manual or automatic transmissions. A defining characteristic of this initial generation was its front-engine, rear-wheel-drive layout. Throughout its production run until 1987, the Gemini received several cosmetic updates and facelifts—most notably in 1977—which refreshed the front fascia, grille design, and interior trim. The model was marketed worldwide under various General Motors badges, including Isuzu I-Mark in North America, Holden Gemini in Australia, and Opel-derived variants in Europe, earning a strong reputation for reliability.