Porsche 928 specs




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    The Porsche was one of the most expensive of the line -- and at one time, the world’s fastest road car. Learn its specifications and see pictures.

    Find all the key specs about the Porsche from fuel efficiency and top speed, to running costs, dimensions, data and lots more.

    Porsche executives believed such a flagship would have wider appeal than the compact, quirky and sometimes difficult After all, our product range is always expanding. Styling was the same in both and , with the body lacking both front and rear spoilers. This is regarded as proof of how advanced the was, compared to its contemporaries.

    Porsche Pictures and Specifications | HowStuffWorks

    Originally intended to replace the company's iconic , the combined the power, poise, and handling of a sports car with the refinement, comfort, and equipment of a luxury saloon. Porsche executives believed such a flagship would have wider appeal than the compact, quirky and sometimes difficult By the late s Porsche had firmly established itself as a manufacturer of high-performance sports cars.

    Executives, including owner Ferdinand Porsche , were beginning to consider adding a luxury touring car to the line-up. Managing director Ernst Fuhrmann was pressuring Ferdinand to approve development of the new model due to concerns that the then-current flagship model, the , was reaching the limits of its potential. Slumping sales of the seemed to confirm that the model was approaching the end of its economic life cycle.

    This would set it apart from the , with a relatively spartan interior and true sports car performance. Ordered by Ferdinand Porsche to design a production-feasible concept for the new model, Fuhrmann initiated a design study in , eventually yielding the Several drivetrain layouts were considered during early development, including rear and mid-engined designs, but most were dismissed because of technical and legislative difficulties.

    Having the engine, transmission , catalytic converter s and exhaust all cramped into a small rear engine bay made emission and noise control difficult, problems Porsche had with the After deciding that the mid-engine layout did not allow enough room in the passenger compartment, a front-engine, rear-wheel drive layout was chosen.

    Porsche may have feared that the U. The five-cylinder unit is a derivative of the Volkswagen Golf EA engine, essentially an inline-four with another cylinder added.

    Several members of the Porsche board objected, chiefly because they wanted Porsche AG to maintain some separation from Volkswagen. The resulting M28 engine has multiple unusual features. This engine uses thick aluminum cylinder barrels, hence the lower displacement. The engine was designed for air flow first, thus the spark plugs are located at the top of the head. The four-bolt bearings are sizeable and are fed oil via grooves in the bottom surface of the block.

    The oil and water pumps are driven by the timing belt, and the design of the engine allows for sufficient air flow with a low hood. The first two running prototypes of Porsche's M28 V8 used one four-barrel carburetor for initial testing. The cars were sold with the planned Bosch K-Jetronic fuel injection system.

    When increasing concern within the company over price and availability of fuel during the oil crisis of the s became an issue of contention, smaller engines were considered in the interest of fuel economy. A push began for the development of a 3. Both sides finally settled on a 4. The finished car debuted at the Geneva Motor Show before going on sale later that year as a model. Although it won early acclaim for its comfort and power, sales were slow.

    Base prices were much higher than that of the previous range-topping model and the 's front-engined, water-cooled design alienated many Porsche purists. Fuhrmann's replacement, Peter Schutz, decided that the models should be sold side by side, feeling that the still had potential in the company's line-up. Legislation against rear-engined vehicles did not materialize.

    1985 Porsche 928 Coupe



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