Note: Dashes indicate continued serial numbers. The engines had significant changes so they were given different engine codes while having the same displacement before larger displacement engines were subsequently introduced.
The Porsche 928 is a grand touring car with a 2+2 seating layout manufactured by Porsche AG of Germany from 1978 to 1995. Initially conceived to address changes in the automotive market, it represented Porsche's first fully in-house design for a production vehicle and was intended to potentially replace the Porsche 911 as the company's flagship model.[1] The 928 aimed to blend the performance and handling characteristics of a sports car with the comfort, spaciousness, and ride quality of a luxury car.[2] Porsche executives believed that the 928 would have broader appeal compared to the compact, somewhat outdated, and slow-selling air-cooled 911.[3] Notably, it was Porsche's inaugural production model powered by a V8 engine located at the front, and it achieved remarkable top speeds,[4][5] earning recognition upon its 1978 release by winning the European Car of the Year award.[6]The Autocar described it as a "super car" in 1980.[7]
^cite web |url=https://www.porscheengineering.com/nardo/en/thecompany/history/ |website=www.porscheengineering.com |title=History Records & Tests |access-date=September 29, 2023 |quote= On 07th November 1982, the Porsche 928 S set the 24 hour record. At the time the revolutionary Porsche car with front engine and manual rear axle gearbox covered the 6033km at an average speed of 251.4 km/h
^"Holbert 928 History - The Land Speed Record". www.perfexmfg.com. Retrieved September 27, 2023. After these successful tests on April 5 and 6, 1986, the 928S4 was fitted with its higher rear axle ratio, which was aimed at matching peak power with peak speed. At Nardo the engine had been bumping up against its controlled limit of 6,500 rpm. By the end of April the car was ready for shipping to the United States, where Walter Naher supervised the runs. Al Holbert took the wheel at Bonneville in August, when the salt was at its best. On August 7 he was officially timed by USAC, under the auspices of the FIA, at an average of 171.110 mph for the flying mile and 171.926 mph for the kilometer. It was official; Porsche could declare the 928S4 the world's fastest catalyst-equipped car.
^"Porsche 928". www.caroftheyear.org. Retrieved September 29, 2023.
^""Porsche 928S"". Autocar. United Kingdom: Haymarket Media Group. 1980-05-04.