Since the early days of Grand Prix racing many attempts were made to enter the Formula One and pre-war Grand Prix era. The period 1885 – 2021 contains over 650 Unraced projects. Every now and then new projects appear on the surface. To share with you all the stories i decided to summarize the stories per year. Don’t you worry, all the stories will be researched and eventually published. This is the summarized overview of the 1973 season.
Dywa – Chevrolet
1973 is the year it all started for Dywa the creation of the Italian Dydo Monguzzi. In 1973, he spoke with several media outlets regarding his plans to design a Formula one car around a chevy-3litre stock block. The first articles appeared on the Italian motorsport magazine Autosprint. The car was similar to other Formula One cars in those days though looked bulky. For now, I’m lacking the information about what has happened.
Eifelland – Cosworth
I believe you are aware of the Eifelland designed by late Luigi Colani. The car, a March 721, with the air intake in front of the driver. While a mirror was in front of the driver as well. The car was far from reliable due to cooling problems and the lack of downforce. The disaster of 1972 was even complete when Günther Hennerici sold his company to someone who was not interested at all in motorsport. However, Hennerici asked Len Terry to design a new Eifelland for the 1973 season. Probably the car would be branded the type 22 or 23.
Lyncar 004 
Madi-01
Ferrari 312B3 Spazzaneve
On the eve of the 1972 Italian Grand Prix the Scuderia presented their first design of the Ferrari 312B3. At that time Ferrari was in a crisis, and for 1973 they need something revolutionary. Soon nicknamed the Spazzaneve. The nickname, which means snowplough, came from the sloping nose marked by the two big naca inlets used to cool the side radiators. Mauro Forgieri designed the car. He was inspired by Team Lotus for obvious reason. Jacky Ickx and Arturo Merzario tested with the car. They were far from happy with the car’s handling and so was Enzo Ferrari. He re-placed Forgieri to the experimental department while Sandro Colombo was asked to work on the car. It would be Ferrari’s most revolutionary Formula 1 design ever. Which never drove a single Grand Prix.
Lyncar 004
The Lyncar is a Formula racer I have no clue off where to place it. The Lyncar 004 was seen at the Racing Car show at Earl’s Court. Powered by Ford. It is not sure if Martin Slater designed the car for the Formula 1. The design looks very smooth and decent. In my archive, I found some information. The 004 was from David Good who did hillclimb races that season. If you have more information on the car let me know!
Madi-01
The 1970s were the turning point in USSR motorsports. It seems that some revolution was undergoing there. In 1973 the Madi-01, designed by S. Gess-de-Kalve, made it’s first appearance. The Lotus 72 inspired the car was fitted with the GAZ-21-14 2998cc engine. An engine based on the Volga engine. Sadly, the engine was massively underpowered. Producing only 125HP with a top speed of 204 KPH. Interesting is that in those days the USSR had something like Soviet Formula 1 specs.
Dywa – Chevrolet 
Ferrari 312B3
Rondel-Cosworth RJ42
The Rondel RJ42 is a bit of a mystery to me. Rondel Racing was founded by two ex-Brabham mechanics Ron Dennis and Neil Trundle. They raced in the Formula two during the life span of the team. However, for 1974 it seems they were preparing their debut in the Formula One. Motul sponsored the team. Therefore, there was money enough you would say. Ray Jessop designed a F1 car for the team. Due to the oil crisis of 1973, Motul pulled the plug for Rondel. While Dennis left the team, Trundle continued with the F1 design. Not much later the car would become a Token to eventually evolve in the Safir RJ01.
Tecno E731
In 1973 Tecno appeared with two different cars, designed by two different designers on the grid. Gordon Fowell and Alan Philips designed the Tecno E731. As they, both owned Design Bureau Goral. The car was only used during the practice session of the British Grand Prix. Afterwards the car hasn’t been seen anymore. Chris Amon was involved as well with the car’s design. I’m lacking information on this one. If you have some let me know!
