The Porsche 928 went through several iterations, each increasing in horsepower as Porsche refined the model. Here’s a breakdown of the horsepower across different model years of the 928:
1978–1982 Porsche 928 (Base Model)
- The original Porsche 928, released in 1978, was equipped with a 4.5-liter SOHC V8 engine that produced 240 horsepower. This was reduced to 219 horsepower in the North American market due to stricter emissions regulations.
1980–1986 Porsche 928 S
- By 1980, Porsche introduced the 928 S, which featured a larger 4.7-liter V8 engine. In the European market, this engine produced 300 horsepower, while the North American version initially generated 234 horsepower in 1983 but was increased to 288 horsepower by 1985.
1987–1991 Porsche 928 S4
- In 1987, the Porsche 928 S4 was released, powered by a 5.0-liter V8 engine. This model saw a significant boost in power to 320 horsepower, which carried through until 1991. This generation was particularly well-received due to its combination of power and comfort, making it one of the top grand tourers of the late 80s.
1989–1991 Porsche 928 GT
- The 1989 Porsche 928, particularly in its GT and S4 variants, is recognized for its power and performance. The Porsche 928 GT featured a 5.0-liter V8 engine that produced 330 horsepower at 6000 rpm and generated 317 lb-ft of torque at 3000 rpm. This engine was mated to either a 5-speed manual transmission or a 4-speed automatic, though the GT was primarily associated with the manual version for more performance-oriented driving.
- The Porsche 928 S4 from the same year was also equipped with a 5.0-liter V8 engine, slightly less powerful, producing 320 horsepower. The car had a top speed of around 168 mph and could accelerate from 0 to 60 mph in about 5.6 seconds, making it one of the fastest grand tourers of its.
1992–1995 Porsche 928 GTS
- The final iteration of the 928, the GTS, was introduced in 1992 and featured the most powerful engine of the series, a 5.4-liter V8 producing 350 horsepower. This model remained in production until 1995, representing the peak of the 928’s performance.
