The Porsche 787 is a Formula One racing car built and raced by Porsche for one year in 1961. Ferdinand Alexander "Butzi" Porsche, the founder's grandson, was involved in the design of what would become Porsche's first Formula One car.

Only two 787s, serial numbers 78701 and 78702, were ever built. Due to their lack of power and poor handling Ferry Porsche retired the model and continued with the 718/2 as a stopgap. Porsche would focus on the upcoming 804 and its flat-eight engine for Formula One in 1962. Both 787s were scrapped by the factory in 1964.

The engine was a Porsche 547/3 1.498 cc F4 boxer and produced 186 bhp.

The 718 was a development of the successful Porsche 550A with improvements made to the body work and suspension. The car's full name is 718 RSK, where "RS" stands for RennSport (sports-racing) and the "K" reflects the shape of the car's revised torsion-bar suspension. It had a mid-engined layout and used the 142 horsepower 1.5-litre Type 547/3 quad-cam engine introduced in the 550A.

Formula One switched to a 1.5-litre formula in 1961 and Porsche entered three 718s for Dan Gurney, Hans Herrmann and Jo Bonnier. Gurney scored three 2nd places taking him to 4th place in the Drivers' Championship. For 1962, Porsche entered a new car, the Porsche 804 in Formula One.

The Porsche 804 is a single-seat, open-wheeled racing car produced by Porsche to compete in Formula One (F1). It raced for a single season in 1962 in the 1½ litre formula.

The 804 was designed by Ferdinand Alexander "Butzi" Porsche, also known as F.A. Porsche. He is the son of Ferdinand Anton Ernst "Ferry" Porsche, and grandson of the company's eponymous founder Ferdinand Porsche. F.A. Porsche was assigned the project by the company's long-time chief body engineer Erwin Komenda.

A total of four cars were built. The fourth chassis was never raced.

The 804 gave Porsche its only F1 wins as a constructor, at the 1962 French Grand Prix, and at the (non-WC) Solituderennen at Castle Solitude in Stuttgart, both with Gurney as driver.

The 804 was the first Porsche to have some factory body panels made of synthetic materials. The nose and the cockpit surround were made of fibreglass later in the season. The 804 weighed approximately 455 kg; only slightly above the regulated minimum weight of 450 kg.

Design of the new Type 753 flat-eight engine for F1 was handled by Hans Hönick and Hans Mezger. With a compression ratio of 10.0:1, the 753 flat-eight engine produced 177 hp at 9200 rpm on its first outing. This was still less power than the new Coventry-Climax and BRM V8 engines. With the improved six-speed transmission from the Type 718 and a ZF limited-slip differential, the car reached a top speed of 270 km/h.

Just before the end of the season, prior to the running of the South African Grand Prix, Porsche halted its F1 activities. At this point Porsche's F1 participation had cost the company £500.000. The 804 was not raced again, but the Porsche flat-eight engines were later used in sportscars.