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My story begins in the late sixties at
Bertone where the chief designer Marcello
Gandini and his chief Nuccio
Bertone had just finished the mid engined
Lamborghini Miura. This was Mr. Gandini's first design at Bertone.
But at the Bertone factory there was another big success in production:
The Fiat 850 Sport Spider.
The people at Bertone knew that Fiat
was developing their first frontwheel drive cars, because Fiat
had already tried the concept in the Autobianchi Primula. So even
if the little 850 Spider (designed by Bertone's former chief designer
Giugiaro ) was a good seller, they could already foresee
that a new car would take it's place in the near future.
Then there would be two scenarios: Either
a softtop frontwheel drive car that could be produced at Fiat
as a Fiat 128 Spider. Or a special low volume (for Fiat) new sport
spider that could only be produced at a smaller factory, ex. at
Bertone.

So Bertone took the drive unit from the
Autobianchi Primula, added the nearly finished new engine from
the 128, and built a wild and beautiful open barchetta, and they
called the prototype Autobianchi A112 Runabout. This car was showed
at the 1969 Torino Car Exhibition. At he same time as the Fiat
X1/1 (the Fiat 128) debuted. The runabout was clearly a good idea,
so Fiat decided to go ahead with the project together with Bertone.
In 1972, a week after the Torino Show (because Fiat 131 debuted
at the show...), the new Fiat X1/9 debuted. The internal code
became the new car's name because this "128 Spider"
did not have frontwheel drive as the rest of the 128 lineup.

23rd of November 1972 was the debute
date,and the start date for the production of the X1/9. Although
at a fairly high price (as much as a Volvo 144), the little, but
real midengined sportscar was a uge success. The motoring press
loved the new car, many jounalists was driving sideways in the
corners just for the fun of it! Autocar's Peter Windsor (UK) summed
up his first 12,000 miles in just three words: "A baby Ferrari".
Other X1/Fiats
So the X1/1 became the frontwheel drive
128 in 1969. The X1/4 became the 903 ccm 127 (same driveline as
X1/2, the Autobianchi A112, and same engine as in the 850 sport
spider) in 1971. X1/3 became the big 130. The midship twincam
engined X1/8 was at first stopped, but became later the X1/20
which debuted as the Lancia Montecarlo in 1975. Both the X1/8
and the X1/9 was technically heavy influenced of the midengined
prototype Fiat G.31 back in 1966. I have also seen the story that
X1/30 became the later Fiat 138, which we know as the Ritmo (Strada
in some countries). I don't know if Fiat still call new projects
"X1/something"...
The X1/9 construction
The X1/9 is exstreme stiff to be a open
top car. The background for this stiffness is a separat story.
At the late sixties the the americans was planning new safety
regulations in the USA. One goal was new crash tests that should
be the same for all cars, even the open top cars. So Bertone made
the car stiff as hell with a roll over cage. The result was very
good. Together with Volvo the little Fiat was the only one to
make it through the new test like frontal crash from 70 km/h and
roll over from 170 km/h without much less room in the cabin. Then
the americans discovered that non of thir own USA-cars did it
through the tests, so they lowered the levels of these tests...

The result of all this stiffness is that
the X1/9 is quite heavy to be a small sports car of the early
seventies. However the stiffness and the dynamics allow for bigger
engines. The first one to make a racing car of the X1/9 was Fiat's
inhouse tuning expert Abarth. In 1973 he fitted the 1840 ccm twincam
124-engine in his Abath Prototipo 2000. After Abarth's tune up
this engine developed about 200 bhp! And the car was just 750
kg! This could be Fiat's new rally car, if Fiat didn't decide
to make the shorter Lancia Stratos (also with design by Bertone
& Gandini) for this task...


Dallara (the constructor of several Ferrari
and Lamborghini engines) did the Dallara Icsunonove race car the
same year. From the standard 1300 unit he developed a 1600 with
his own 16 valve head. It gave 200 bhp at 10,000 rpm. And the
car was just 650 kg. Terrific! "Ics-uno-nove" means
"x-one-nine" in Italian of course...
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