Volkswagen versions originally featured the fuel-injected 1.7 L VW Type 4 flat-four engine producing 80 bhp (60 kW; 81 PS).

The venturis in the Weber 40IDT3C carburetors were 27 mm (1.1 in), smaller than the other 911 engines, and the exhaust pipe diameter was also reduced in size.

[9] Karmann manufactured the rolling chassis at their plant, completing Volkswagen production in-house or delivering versions to Porsche for their final assembly.

A Volkswagen-Porsche joint venture, Volkswagen of America, handled export to the U.S., where both versions were badged and sold as Porsches.

For 1973 the discontinued 914/6 was replaced in the lineup by a variant powered by a new 100 bhp (75 kW; 101 PS) 2.0 L, fuel-injected version of Volkswagen's Type 4 engine.

For 1974, the 1.7 L engine was replaced by an 85 bhp (63 kW; 86 PS) 1.8 L, and the new Bosch L-Jetronic fuel injection system was added to American units to help with emissions control.

In 1975 and 1976, the chrome or painted bumpers were replaced with heavy, rubber-covered units which actually made the cars more stable at high speeds.

Other interior differences included changing vinyl designs, gauge appearance, and air vent configurations in the dash.

The Porsche 914 was produced from 1969 to 1976 in the following models: On 1 March 1970 the 914/6 was homologated by the Fédération Internationale de l'Automobile (FIA) for Group 4, Special Grand Touring cars.

Externally the cars were distinguished by squared fender flares that were the full 2 in (51 mm) depth permitted by FIA rules.

[13] To add to the total, an additional 11 cars were equipped with the Competition Option Group M471 package that included the GT's steel fender flares, rocker panels and nose piece as well as wheel spacers, a set of 6-inch wide Fuchs wheels, and 185/70VR15 tires, but did not include the enhanced engine from the GT.

Powered by a 350 hp (261 kW; 355 PS) Type 908 flat-eight racing engine, it was built using a surplus handbuilt 914 development prototype bodyshell, chassis No.

[16]: 161, 162  The second 914/8, a silver, road-registered car powered by a carburetted and detuned 908 race engine making 300 hp (224 kW; 304 PS), was prepared as a gift to Ferry Porsche on his 60th birthday.

The Porsche Tapiro was a concept car designed by Giorgetto Giugiaro's Italdesign studio and built on a 914/6 platform.

Sold to Argentine composer Waldo de los Ríos, the car was extensively damaged in a fire.

[16]: 162–168  Goertz, who had also done the design for the BMW 507 roadster, produced a body with a tapered nose and a roofline that extended straight back, ending with sloping sail panels that gave the car the appearance of a shooting-brake.

[19] In 1970 Swiss Industrialist Dr. Alfred Gerber contracted compatriot car designer Franco Sbarro to build a customized 914.

The engine produced 115 hp (85.8 kW), and in the 914 returned 21 mpg‑US (11.2 L/100 km) while allowing the car to reach a top speed of 190 km/h (118.1 mph).

[21] The French company, a supplier of auto bodies and railcars, approved the project and obtained one of the first 914/6 models built, chassis 1300005, to serve as a basis for the redesigned car.

Cooper, hoping to get the car into production, arranged, with Brissonneau's approval, for the Heuliez company to take on responsibility for development.

It was also to have a fixed steel roof, wider wheels, double grilled engine lid, and flared fenders as styled from the 914-6 GT cars.

One 916 was built to US specs and on delivery to the US was fitted with air conditioning by the dealer (Brumos) and has been housed at the Automobile Atlanta 914 museum since 1990.

In 1973 Artz and Nordstadt unveiled a custom car called the Carrera Käfer that mounted a modified Volkswagen Beetle 1303 body on a Porsche 914/6 chassis.

[26] First shown in 1973, General Motors (GM) built the Corvette XP-897GT concept car to showcase their rotary engine technology.

When the rotary engine project was cancelled, GM stored the car at the Vauxhall Design Centre in England.

The car was rescued from the crusher by an English enthusiast, who also managed to obtain an original GM rotary engine.

[citation needed] Along with the regular Appearance Group option (fog lamps and center console with clock and additional gauges) at $300, the LE package set buyers back another $320.

Additionally, all Limited Editions were equipped with front and rear anti-roll bars, dual horns, leather covered steering wheel, driving lights, painted rear roll bar trim (as opposed to vinyl clad), Mahle cast aluminum wheels and a center console with an oil temperature gauge, clock, and voltmeter.

A 914/6 GT driven by Frenchmen Claude Ballot-Léna and Guy Chasseuil won the GTS class and finished sixth overall at the 1970 24 Hours of Le Mans.

The Porsche 914 is renowned for having been Formula One's first Safety Car following its deployment at the 1973 Canadian Grand Prix to help manage the race, which had seen various incidents due to treacherous weather conditions.