Marcel Roks Consultants bvba
op Turnhout 84
Mr. Bob Schmitt
Dear Mr. Schmitt,
With respect to the BMW 328 Cotura RS which we are
offering, I can give you the following details about the complete
history of this particular car with serial-number 85019:
When in 1949 in Holland the famous Zandvoort
racing-track was constructed, all racing-enthusiast started looking for
affordable racing-cars and some of them even started constructing their
own cars. Some were made from scratch and some were constructed based on
other older cars. Two excellent cars were constructed by
racing-enthusiast and engineer Coos van der Tuyn, who had a garage in
Rotterdam. He worked together with Mr. W. Adams to make both his
racing-cars, based on the chassis and complete running gear of BMW 328’s.
In the Dutch Car Magazine “Autosport” of May 1949 it was already
mentioned that Van der Tuyn was constructing a BMW based racing-car.
His first car was based on chassis #85019 and Coos
van der Tuyn made the bodywork like the famous Frazer Nash Le Mans. The
car was named COTURA which
was an abbreviation of COos
van der TUyn Racing Automobiles.
His steel and partial aluminium bodied car was 100 kg lighter then a
normal 328. This car #85019 also received a grill in the same style as
the Frazer Nash. The second car which Van der Tuyn constructed had the
typical BMW 328 grill. This made it very easy to identify this car on
racing-pictures, and also of course the registration-plate PK-30-07
which the car received already in November 1953.
Van der Tuyn practiced with the car on the
Zandvoort circuit but the first races where driven by his friend W.
Adams who was a more experienced racing-driver. On June 11, 1950 Van der
Tuyn started his first race with the car in the National Sportscar
Races. In the 2-litre class he immediately took the lead, ahead of the
Ferrari of Mr. Roosdorp, but he already went of the track in the first
lap. On the 20th. of September he returned to Zandvoort to break the 2
litre 1-hour record. But rain spoiled everything and he had to cancel
his drive. But in the national press the excellent road-holding and very
fast acceleration where noticed.
Amongst his various race-participations in 1950
Coos van der Tuyn also started in the German Grand Prix at the
Nurburgring circuit. He
started in the Sportscar Class E for 1500cc up to 2000 cc and had
After the first 2 days of practice at the
Nurburgring Van der Tuyn managed to have 7th. fastest time against
better drivers and faster cars such as Ferrari and Veritas. The final
result of the race is not known to us.
In 1951 Coos Van der Tuyn allowed Hans Hugenholtz,
racingdriver and designer of the Zandvoort racing-track, to drive the
Cotura for a few laps at Zandvoort. He managed to do a lap of 2.08.7
which was an average of 117,28 Km/hour. For years this was Hugenholtz
his personal record on his own circuit!
In 1980 Hugenholtz
was re-united with the car and he also mentioned that he remembered the
Cotura to give you the feeling that the car could not get from the road
in corners and the acceleration was incredible.
In 1952 this Cotura #85019 came into the hands of
Dutch racing-driver Maasland and it was raced by himself and his
daughter Joke Maasland. On the 27th. of July 1952
Maasland won the 2 litre class with his car.
In 1953 the Cotura was purchased by Mr. Bos-Eyssen,
a local cheese-merchant, with a love for car-racing. He had the Cotura
#85019 registered for the road and the car received registration-number
PK-30-07. Amongst his various races with the car, Bos-Eyssen was in the National Sportscar Races on June 7, 1954
with the car with race-number 49 in the 1801-2000 cc class D.
In 1956 Mr. Paul Huis in ‘t Veld raced the Cotura
at Zandvoort and the car was pictured at the side of the track, still
with registration-number PK-30-07.
Then the Cotura disappears for a few years and
finally is discovered again in 1962. It was found in a garage in Bussum
in Holland in completely neglected condition. Mr. H. de Groot, a retired
technician, was the one who purchased the car as he loved the basic
shape of the car and was inspired by the history of the car. He
approaches Hans Hugenholtz for details and he does a lot of research.
Then he finally decided to restore the car to its former glory.
But it turned out that the engine of the car was
beyond use and beyond restoration. For years water had been standing in
the engine and therefore block and cylinder-head were destroyed. As it
was in the 1960’s not easy to find a replacement 328 engine Mr. de
Groot decided as alternative to use a 6-cylinder Mercedes 220 engine,
complete with gearbox. He also decided to change the original
Frazer-Nash style grill into the typical BMW 328 grill.
In 1980 the car was ready and again Hans Hugenholtz
was asked to test the car at Zandvoort and to write an article about the
car and its history. And again Hans Hugenholtz states that the car is a
great racing-car, even though it had a Mercedes engine and gearbox which
weren’t perfect for the car.
Then there turned out to be a German collector who
had the other Cotura in his possession. This was the car with
chassis-number 85119 which had the BMW 328 style grill. This German
collector had his car ground-up restored and he used his car in various
When he heard that the first Cotura 85019 was still
in Holland he had to have that car also. After some negotiations he
managed to buy the car and was the proud owner of both Cotura’s. But he of course did not like that car 85019 was restored
with a Mercedes engine and gearbox and the wrong shaped grill. He
decided to have the car ground-up restored again in 1992. But as he
already had one Cotura with which he could drive rallies he thought it
better to have car 85019 prepared for high-speed events and circuit
Therefore the replacement BMW 328 engine was given
in the hands of the experienced German ex-BMW race-engineer George
Thiele. He was ordered to tune the engine to maximum power that would
last and not blow the engine. So the engine was equipped with a special
balanced cranck, lightweight conrods, Mahle pistons, bigger valves and 3
Solex 32mm carburators. As the car did not have a gearbox yet it was
decide not to use a BMW 3-speed gearbox but to make use of the stronger
and better Volvo gearbox. This is a very common practice within BMW 328
users and racers as the Volvo gearboxes are stronger and more reliable.
However, included with this car is an un-used correct ZF 4-speed gearbox
which came from the old BMW stock.
As the German owner did hardly use car 85019 after
the restoration, because he kept using 85119, he decided to sell the car
again. And surprisingly car 85019 was again sold to Holland in 1997. It came into the hands of a beginning collector who
was fascinated by the Dutch history of the car. And even today the car
still has the same Dutch registration-number which it had all its life:
PK-30-07. Regretfully the present owner his time never allowed him to
use the car neither. He had great plans to take the car to the Mille
Miglia but until now he only took the car to a Concours at Paleis Het
Loo in Holland. So after the restoration the car has hardly been used
and is even today in an excellent condition.
As the owner realises this is a competition-car
which has to be used he has decided to sell the car again.
This car comes from a private party and has Dutch
registration documents. Also FIVA papers are with the car, in which the
Volvo and the ZF-gearbox are both included.
The car is priced at 200.000,--
If you have any questions, please do not hesitate
to contact me.
Early Contemporary Report
German F2 Grand Prix, 1950
At Zandvoort, Early '50's
At Zandvoort, Later '50's
During Bos-Eyssen ownership