1964 Porsche 904 Carrera GTS
Designed by Ferdinand 'Butzi' Porsche, the 904 looks like a rocket ship even when standing still. Here was a racing car designed to be street legal as well. The first 100 were built in 1964 and fitted with the 4 cylinder, 4 cam Carrera engine since the 6 cylinder destined for the 911 was not ready yet.

The frame was a box structure with the body bonded to it providing adequate rigidity. The seats were also molded into the car. Driver accommodations made by a telescoping steering wheel and adjustable pedals.
The car was delivered to customers with both racing and street exhaust systems. The racing version at 1433 lbs would do over 160 MPH, a standing kilometer in 24.5 seconds and 0-100 km/h (62 MPH) in six seconds.
In 1965 another 20 were produced for use as prototypes with 6 and 8 cylinder engines.
Several of the 904 were called 906 by the factory after being fitted with 6 and 8 cylinder engines. The 904 had several features that were troublesome. The fiberglass body was bonded to a steel subframe. This construction technique was suspect because any corrosion problems were hidden under the fiberglass. Further the bodies were made by spraying chopped fiberglass into a mold. The amount sprayed varied in thickness and as a result the weight of the various cars was inconsistent.


Often referred to as the first of the "modern" Porsches, the 904, developed in 1963 and first raced in 1964, featured another "first" for Zuffenhausen, a full fiberglass bodied coupe, bonded to a steel channel frame. Intended to use the new boxer six from the then just introduced 911, it wound up employing the aged Carrera four cam four-cylinder instead. Even so, this engine was enough to help the 904 dominate the 2.0-liter production sports car class for Porsche for the next two years. That success was achieved mainly by Porsche's customers, the factory concentrated on running a small fleet of six and eight cylinder powered 904's of its own in the 2.0-liter prototype category.
As had its customers, the factory came to dominate the division with its coupes, enjoying nearly total success from Daytona and Sebring through Le Mans in 1964 and '65. The only blemish on the 904's record came in 1965 when it was defeated in the hillclimb arena by Ferrari's Type 166 Dino Spyder. In an attempt to keep the 904 on par with its Ferrari rival,  Dr. Ferdinand Piech, the newly appointed head of Porsche racing, converted the 904 from a coupe to an open-topped car. Those efforts were in vain; however, they led Piech to pursue new directions in design that would take Zuffenhausen to the top of the sport.

Many consider the 1964 Porsche 904 GTS to be the most beautifully styled and elegant Porsche ever produced.  According to published history, this automobile was penned "freehand" without benefit of wind tunnel design evaluation or anything like computer graphics by "Butzi" Porsche, currently head of his own renowned design firm, and son of the late Ferry Porsche.
Features opening rear deck revealing the original type 547 Carrera 4-cylinder engine nicely detailed including spark plug wires. The doors also opening showing the "fuzzy" type seat covering of the original. The front hood (or bonnet) opens revealing the fuel tank over the spare tire. This is a great piece of Porsche history captured in diecast or any Porsche afficiando or lover of "Pre-Computer Era" great elegantly styled automobiles.
 Although it was officially named Carrera GTS, it opened a new chapter in Porsche's sporting history under the internal designation 904. The 904, designed by Ferdinand Alexander Porsche (known as "Butzi"), anticipated, from a technical point of view, much that did not become the norm in racing car manufacturing until later: mixed steel/plastic construction, low weight, small frontal area. It was the first Porsche with a plastic body and 100 examples had to be built in order to qualify for the GT class. This was followed by a further 20 vehicles, of which 16 were assembled. The rest provided the parts for the spare parts store.

The 904 GTS displayed in the Porsche museum had, as a works car, an eight-cylinder two-liter engine and joined the line-up at Le Mans in 1964 and in 1965 driven by Mitter/Davis.

Exactly five months after it was presented, Porsche achieved its fifth victory in this classic race on 26 April 1964 with the production 904 at the Targa Florio. Antonio Pucci and Colin Davis snatched victory ahead of Linge/Balzarini in an identical 904. Further victories followed: at the Tour de France, at the 1,000 kilometer race around the Nürburgring, in the Le Mans 24 hour race and in the following Reims 24 hour race. The 904 proved its roadworthiness at the Monte Carlo rally in 1965, where Eugen Böhringer still came in second despite a totally snow-covered course. The 904 fitted with four, six and eight-cylinder engines was not only a very successful racing car of the early 1960s, to this day it is still regarded as one of the most attractive.

In 1965, a Porsche 904 powered by a 6-cylinder engine finished fourth at Le Mans, winning the Le Mans handicap and the Index of Performance. As testament to the role the race plays in the development of specific Porsche components, the brake calipers used on the 904, and later on the 906, became known as "Le Mans calipers".